Sure thing, let's get straight to it. We start with 408 and we're going to multiply it by 486, which means adding 408 to itself 486 times.
Step 1: 0 + 408 = 408
Step 2: 408 + 408 = 816
Step 3: 816 + 408 = 1224
Step 4: 1224 + 408 = 1632
Step 5: 1632 + 408 = 2040
Step 6: 2040 + 408 = 2448
Step 7: 2448 + 408 = 2856
Step 8: 2856 + 408 = 3264
Step 9: 3264 + 408 = 3672
Step 10: 3672 + 408 = 4080
Step 11: 4080 + 408 = 4488
Step 12: 4488 + 408 = 4896
Step 13: 4896 + 408 = 5304
Step 14: 5304 + 408 = 5712
Step 15: 5712 + 408 = 6120
Step 16: 6120 + 408 = 6528
Step 17: 6528 + 408 = 6936
Step 18: 6936 + 408 = 7344
Step 19: 7344 + 408 = 7752
Step 20: 7752 + 408 = 8160
Step 21: 8160 + 408 = 8568
Step 22: 8568 + 408 = 8976
Step 23: 8976 + 408 = 9384
Step 24: 9384 + 408 = 9792
Step 25: 9792 + 408 = 10200
Step 26: 10200 + 408 = 10608
Step 27: 10608 + 408 = 11016
Step 28: 11016 + 408 = 11424
Step 29: 11424 + 408 = 11832
Step 30: 11832 + 408 = 12240
Step 31: 12240 + 408 = 12648
Step 32: 12648 + 408 = 13056
Step 33: 13056 + 408 = 13464
Step 34: 13464 + 408 = 13872
Step 35: 13872 + 408 = 14280
Step 36: 14280 + 408 = 14688
Step 37: 14688 + 408 = 15096
Step 38: 15096 + 408 = 15504
Step 39: 15504 + 408 = 15912
Step 40: 15912 + 408 = 16320
Step 41: 16320 + 408 = 16728
Step 42: 16728 + 408 = 17136
Step 43: 17136 + 408 = 17544
Step 44: 17544 + 408 = 17952
Step 45: 17952 + 408 = 18360
Step 46: 18360 + 408 = 18768
Step 47: 18768 + 408 = 19176
Step 48: 19176 + 408 = 19584
Step 49: 19584 + 408 = 19992
Step 50: 19992 + 408 = 20400
Step 51: 20400 + 408 = 20808
Step 52: 20808 + 408 = 21216
Step 53: 21216 + 408 = 21624
Step 54: 21624 + 408 = 22032
Step 55: 22032 + 408 = 22440
Step 56: 22440 + 408 = 22848
Step 57: 22848 + 408 = 23256
Step 58: 23256 + 408 = 23664
Step 59: 23664 + 408 = 24072
Step 60: 24072 + 408 = 24480
Step 61: 24480 + 408 = 24888
Step 62: 24888 + 408 = 25296
Step 63: 25296 + 408 = 25704
Step 64: 25704 + 408 = 26112
Step 65: 26112 + 408 = 26520
Step 66: 26520 + 408 = 26928
Step 67: 26928 + 408 = 27336
Step 68: 27336 + 408 = 27744
Step 69: 27744 + 408 = 28152
Step 70: 28152 + 408 = 28560
Step 71: 28560 + 408 = 28968
Step 72: 28968 + 408 = 29376
Step 73: 29376 + 408 = 29784
Step 74: 29784 + 408 = 30192
Step 75: 30192 + 408 = 30600
Step 76: 30600 + 408 = 31008
Step 77: 31008 + 408 = 31416
Step 78: 31416 + 408 = 31824
Step 79: 31824 + 408 = 32232
Step 80: 32232 + 408 = 32640
Step 81: 32640 + 408 = 33048
Step 82: 33048 + 408 = 33456
Step 83: 33456 + 408 = 33864
Step 84: 33864 + 408 = 34272
Step 85: 34272 + 408 = 34680
Step 86: 34680 + 408 = 35088
Step 87: 35088 + 408 = 35496
Step 88: 35496 + 408 = 35904
Step 89: 35904 + 408 = 36312
Step 90: 36312 + 408 = 36720
Step 91: 36720 + 408 = 37128
Step 92: 37128 + 408 = 37536
Step 93: 37536 + 408 = 37944
Step 94: 37944 + 408 = 38352
Step 95: 38352 + 408 = 38760
Step 96: 38760 + 408 = 39168
Step 97: 39168 + 408 = 39576
Step 98: 39576 + 408 = 39984
Step 99: 39984 + 408 = 40392
Step 100: 40392 + 408 = 40800
Step 101: 40800 + 408 = 41208
Step 102: 41208 + 408 = 41616
Step 103: 41616 + 408 = 42024
Step 104: 42024 + 408 = 42432
Step 105: 42432 + 408 = 42840
Step 106: 42840 + 408 = 43248
Step 107: 43248 + 408 = 43656
Step 108: 43656 + 408 = 44064
Step 109: 44064 + 408 = 44472
Step 110: 44472 + 408 = 44880
Step 111: 44880 + 408 = 45288
Step 112: 45288 + 408 = 45696
Step 113: 45696 + 408 = 46104
Step 114: 46104 + 408 = 46512
Step 115: 46512 + 408 = 46920
Step 116: 46920 + 408 = 47328
Step 117: 47328 + 408 = 47736
Step 118: 47736 + 408 = 48144
Step 119: 48144 + 408 = 48552
Step 120: 48552 + 408 = 48960
Step 121: 48960 + 408 = 49368
Step 122: 49368 + 408 = 49776
Step 123: 49776 + 408 = 50184
Step 124: 50184 + 408 = 50592
Step 125: 50592 + 408 = 51000
Step 126: 51000 + 408 = 51408
Step 127: 51408 + 408 = 51816
Step 128: 51816 + 408 = 52224
Step 129: 52224 + 408 = 52632
Step 130: 52632 + 408 = 53040
Step 131: 53040 + 408 = 53448
Step 132: 53448 + 408 = 53856
Step 133: 53856 + 408 = 54264
Step 134: 54264 + 408 = 54672
Step 135: 54672 + 408 = 55080
Step 136: 55080 + 408 = 55488
Step 137: 55488 + 408 = 55896
Step 138: 55896 + 408 = 56304
Step 139: 56304 + 408 = 56712
Step 140: 56712 + 408 = 57120
Step 141: 57120 + 408 = 57528
Step 142: 57528 + 408 = 57936
Step 143: 57936 + 408 = 58344
Step 144: 58344 + 408 = 58752
Step 145: 58752 + 408 = 59160
Step 146: 59160 + 408 = 59568
Step 147: 59568 + 408 = 59976
Step 148: 59976 + 408 = 60384
Step 149: 60384 + 408 = 60792
Step 150: 60792 + 408 = 61200
Step 151: 61200 + 408 = 61608
Step 152: 61608 + 408 = 62016
Step 153: 62016 + 408 = 62424
Step 154: 62424 + 408 = 62832
Step 155: 62832 + 408 = 63240
Step 156: 63240 + 408 = 63648
Step 157: 63648 + 408 = 64056
Step 158: 64056 + 408 = 64464
Step 159: 64464 + 408 = 64872
Step 160: 64872 + 408 = 65280
Step 161: 65280 + 408 = 65688
Step 162: 65688 + 408 = 66096
Step 163: 66096 + 408 = 66504
Step 164: 66504 + 408 = 66912
Step 165: 66912 + 408 = 67320
Step 166: 67320 + 408 = 67728
Step 167: 67728 + 408 = 68136
Step 168: 68136 + 408 = 68544
Step 169: 68544 + 408 = 68952
Step 170: 68952 + 408 = 69360
Step 171: 69360 + 408 = 69768
Step 172: 69768 + 408 = 70176
Step 173: 70176 + 408 = 70584
Step 174: 70584 + 408 = 70992
Step 175: 70992 + 408 = 71400
Step 176: 71400 + 408 = 71808
Step 177: 71808 + 408 = 72216
Step 178: 72216 + 408 = 72624
Step 179: 72624 + 408 = 73032
Step 180: 73032 + 408 = 73440
Step 181: 73440 + 408 = 73848
Step 182: 73848 + 408 = 74256
Step 183: 74256 + 408 = 74664
Step 184: 74664 + 408 = 75072
Step 185: 75072 + 408 = 75480
Step 186: 75480 + 408 = 75888
Step 187: 75888 + 408 = 76296
Step 188: 76296 + 408 = 76704
Step 189: 76704 + 408 = 77112
Step 190: 77112 + 408 = 77520
Step 191: 77520 + 408 = 77928
Step 192: 77928 + 408 = 78336
Step 193: 78336 + 408 = 78744
Step 194: 78744 + 408 = 79152
Step 195: 79152 + 408 = 79560
Step 196: 79560 + 408 = 79968
Step 197: 79968 + 408 = 80376
Step 198: 80376 + 408 = 80784
Step 199: 80784 + 408 = 81192
Step 200: 81192 + 408 = 81600
Step 201: 81600 + 408 = 82008
Step 202: 82008 + 408 = 82416
Step 203: 82416 + 408 = 82824
Step 204: 82824 + 408 = 83232
Step 205: 83232 + 408 = 83640
Step 206: 83640 + 408 = 84048
Step 207: 84048 + 408 = 84456
Step 208: 84456 + 408 = 84864
Step 209: 84864 + 408 = 85272
Step 210: 85272 + 408 = 85680
Step 211: 85680 + 408 = 86088
Step 212: 86088 + 408 = 86496
Step 213: 86496 + 408 = 86904
Step 214: 86904 + 408 = 87312
Step 215: 87312 + 408 = 87720
Step 216: 87720 + 408 = 88128
Step 217: 88128 + 408 = 88536
Step 218: 88536 + 408 = 88944
Step 219: 88944 + 408 = 89352
Step 220: 89352 + 408 = 89760
Step 221: 89760 + 408 = 90168
Step 222: 90168 + 408 = 90576
Step 223: 90576 + 408 = 90984
Step 224: 90984 + 408 = 91392
Step 225: 91392 + 408 = 91800
Step 226: 91800 + 408 = 92208
Step 227: 92208 + 408 = 92616
Step 228: 92616 + 408 = 93024
Step 229: 93024 + 408 = 93432
Step 230: 93432 + 408 = 93840
Step 231: 93840 + 408 = 94248
Step 232: 94248 + 408 = 94656
Step 233: 94656 + 408 = 95064
Step 234: 95064 + 408 = 95472
Step 235: 95472 + 408 = 95880
Step 236: 95880 + 408 = 96288
Step 237: 96288 + 408 = 96696
Step 238: 96696 + 408 = 97104
Step 239: 97104 + 408 = 97512
Step 240: 97512 + 408 = 97920
Step 241: 97920 + 408 = 98328
Step 242: 98328 + 408 = 98736
Step 243: 98736 + 408 = 99144
Step 244: 99144 + 408 = 99552
Step 245: 99552 + 408 = 99960
Step 246: 99960 + 408 = 100368
Step 247: 100368 + 408 = 100776
Step 248: 100776 + 408 = 101184
Step 249: 101184 + 408 = 101592
Step 250: 101592 + 408 = 102000
Step 251: 102000 + 408 = 102408
Step 252: 102408 + 408 = 102816
Step 253: 102816 + 408 = 103224
Step 254: 103224 + 408 = 103632
Step 255: 103632 + 408 = 104040
Step 256: 104040 + 408 = 104448
Step 257: 104448 + 408 = 104856
Step 258: 104856 + 408 = 105264
Step 259: 105264 + 408 = 105672
Step 260: 105672 + 408 = 106080
Step 261: 106080 + 408 = 106488
Step 262: 106488 + 408 = 106896
Step 263: 106896 + 408 = 107304
Step 264: 107304 + 408 = 107712
Step 265: 107712 + 408 = 108120
Step 266: 108120 + 408 = 108528
Step 267: 108528 + 408 = 108936
Step 268: 108936 + 408 = 109344
Step 269: 109344 + 408 = 109752
Step 270: 109752 + 408 = 110160
Step 271: 110160 + 408 = 110568
Step 272: 110568 + 408 = 110976
Step 273: 110976 + 408 = 111384
Step 274: 111384 + 408 = 111792
Step 275: 111792 + 408 = 112200
Step 276: 112200 + 408 = 112608
Step 277: 112608 + 408 = 113016
Step 278: 113016 + 408 = 113424
Step 279: 113424 + 408 = 113832
Step 280: 113832 + 408 = 114240
Step 281: 114240 + 408 = 114648
Step 282: 114648 + 408 = 115056
Step 283: 115056 + 408 = 115464
Step 284: 115464 + 408 = 115872
Step 285: 115872 + 408 = 116280
Step 286: 116280 + 408 = 116688
Step 287: 116688 + 408 = 117096
Step 288: 117096 + 408 = 117504
Step 289: 117504 + 408 = 117912
Step 290: 117912 + 408 = 118320
Step 291: 118320 + 408 = 118728
Step 292: 118728 + 408 = 119136
Step 293: 119136 + 408 = 119544
Step 294: 119544 + 408 = 119952
Step 295: 119952 + 408 = 120360
Step 296: 120360 + 408 = 120768
Step 297: 120768 + 408 = 121176
Step 298: 121176 + 408 = 121584
Step 299: 121584 + 408 = 121992
Step 300: 121992 + 408 = 122400
Step 301: 122400 + 408 = 122808
Step 302: 122808 + 408 = 123216
Step 303: 123216 + 408 = 123624
Step 304: 123624 + 408 = 124032
Step 305: 124032 + 408 = 124440
Step 306: 124440 + 408 = 124848
Step 307: 124848 + 408 = 125256
Step 308: 125256 + 408 = 125664
Step 309: 125664 + 408 = 126072
Step 310: 126072 + 408 = 126480
Step 311: 126480 + 408 = 126888
Step 312: 126888 + 408 = 127296
Step 313: 127296 + 408 = 127704
Step 314: 127704 + 408 = 128112
Step 315: 128112 + 408 = 128520
Step 316: 128520 + 408 = 128928
Step 317: 128928 + 408 = 129336
Step 318: 129336 + 408 = 129744
Step 319: 129744 + 408 = 130152
Step 320: 130152 + 408 = 130560
Step 321: 130560 + 408 = 130968
Step 322: 130968 + 408 = 131376
Step 323: 131376 + 408 = 131784
Step 324: 131784 + 408 = 132192
Step 325: 132192 + 408 = 132600
Step 326: 132600 + 408 = 133008
Step 327: 133008 + 408 = 133416
Step 328: 133416 + 408 = 133824
Step 329: 133824 + 408 = 134232
Step 330: 134232 + 408 = 134640
Step 331: 134640 + 408 = 135048
Step 332: 135048 + 408 = 135456
Step 333: 135456 + 408 = 135864
Step 334: 135864 + 408 = 136272
Step 335: 136272 + 408 = 136680
Step 336: 136680 + 408 = 137088
Step 337: 137088 + 408 = 137496
Step 338: 137496 + 408 = 137904
Step 339: 137904 + 408 = 138312
Step 340: 138312 + 408 = 138720
Step 341: 138720 + 408 = 139128
Step 342: 139128 + 408 = 139536
Step 343: 139536 + 408 = 139944
Step 344: 139944 + 408 = 140352
Step 345: 140352 + 408 = 140760
Step 346: 140760 + 408 = 141168
Step 347: 141168 + 408 = 141576
Step 348: 141576 + 408 = 141984
Step 349: 141984 + 408 = 142392
Step 350: 142392 + 408 = 142800
Step 351: 142800 + 408 = 143208
Step 352: 143208 + 408 = 143616
Step 353: 143616 + 408 = 144024
Step 354: 144024 + 408 = 144432
Step 355: 144432 + 408 = 144840
Step 356: 144840 + 408 = 145248
Step 357: 145248 + 408 = 145656
Step 358: 145656 + 408 = 146064
Step 359: 146064 + 408 = 146472
Step 360: 146472 + 408 = 146880
Step 361: 146880 + 408 = 147288
Step 362: 147288 + 408 = 147696
Step 363: 147696 + 408 = 148104
Step 364: 148104 + 408 = 148512
Step 365: 148512 + 408 = 148920
Step 366: 148920 + 408 = 149328
Step 367: 149328 + 408 = 149736
Step 368: 149736 + 408 = 150144
Step 369: 150144 + 408 = 150552
Step 370: 150552 + 408 = 150960
Step 371: 150960 + 408 = 151368
Step 372: 151368 + 408 = 151776
Step 373: 151776 + 408 = 152184
Step 374: 152184 + 408 = 152592
Step 375: 152592 + 408 = 153000
Step 376: 153000 + 408 = 153408
Step 377: 153408 + 408 = 153816
Step 378: 153816 + 408 = 154224
Step 379: 154224 + 408 = 154632
Step 380: 154632 + 408 = 155040
Step 381: 155040 + 408 = 155448
Step 382: 155448 + 408 = 155856
Step 383: 155856 + 408 = 156264
Step 384: 156264 + 408 = 156672
Step 385: 156672 + 408 = 157080
Step 386: 157080 + 408 = 157488
Step 387: 157488 + 408 = 157896
Step 388: 157896 + 408 = 158304
Step 389: 158304 + 408 = 158712
Step 390: 158712 + 408 = 159120
Step 391: 159120 + 408 = 159528
Step 392: 159528 + 408 = 159936
Step 393: 159936 + 408 = 160344
Step 394: 160344 + 408 = 160752
Step 395: 160752 + 408 = 161160
Step 396: 161160 + 408 = 161568
Step 397: 161568 + 408 = 161976
Step 398: 161976 + 408 = 162384
Step 399: 162384 + 408 = 162792
Step 400: 162792 + 408 = 163200
Step 401: 163200 + 408 = 163608
Step 402: 163608 + 408 = 164016
Step 403: 164016 + 408 = 164424
Step 404: 164424 + 408 = 164832
Step 405: 164832 + 408 = 165240
Step 406: 165240 + 408 = 165648
Step 407: 165648 + 408 = 166056
Step 408: 166056 + 408 = 166464
Step 409: 166464 + 408 = 166872
Step 410: 166872 + 408 = 167280
Step 411: 167280 + 408 = 167688
Step 412: 167688 + 408 = 168096
Step 413: 168096 + 408 = 168504
Step 414: 168504 + 408 = 168912
Step 415: 168912 + 408 = 169320
Step 416: 169320 + 408 = 169728
Step 417: 169728 + 408 = 170136
Step 418: 170136 + 408 = 170544
Step 419: 170544 + 408 = 170952
Step 420: 170952 + 408 = 171360
Step 421: 171360 + 408 = 171768
Step 422: 171768 + 408 = 172176
Step 423: 172176 + 408 = 172584
Step 424: 172584 + 408 = 172992
Step 425: 172992 + 408 = 173400
Step 426: 173400 + 408 = 173808
Step 427: 173808 + 408 = 174216
Step 428: 174216 + 408 = 174624
Step 429: 174624 + 408 = 175032
Step 430: 175032 + 408 = 175440
Step 431: 175440 + 408 = 175848
Step 432: 175848 + 408 = 176256
Step 433: 176256 + 408 = 176664
Step 434: 176664 + 408 = 177072
Step 435: 177072 + 408 = 177480
Step 436: 177480 + 408 = 177888
Step 437: 177888 + 408 = 178296
Step 438: 178296 + 408 = 178704
Step 439: 178704 + 408 = 179112
Step 440: 179112 + 408 = 179520
Step 441: 179520 + 408 = 179928
Step 442: 179928 + 408 = 180336
Step 443: 180336 + 408 = 180744
Step 444: 180744 + 408 = 181152
Step 445: 181152 + 408 = 181560
Step 446: 181560 + 408 = 181968
Step 447: 181968 + 408 = 182376
Step 448: 182376 + 408 = 182784
Step 449: 182784 + 408 = 183192
Step 450: 183192 + 408 = 183600
Step 451: 183600 + 408 = 184008
Step 452: 184008 + 408 = 184416
Step 453: 184416 + 408 = 184824
Step 454: 184824 + 408 = 185232
Step 455: 185232 + 408 = 185640
Step 456: 185640 + 408 = 186048
Step 457: 186048 + 408 = 186456
Step 458: 186456 + 408 = 186864
Step 459: 186864 + 408 = 187272
Step 460: 187272 + 408 = 187680
Step 461: 187680 + 408 = 188088
Step 462: 188088 + 408 = 188496
Step 463: 188496 + 408 = 188904
Step 464: 188904 + 408 = 189312
Step 465: 189312 + 408 = 189720
Step 466: 189720 + 408 = 190128
Step 467: 190128 + 408 = 190536
Step 468: 190536 + 408 = 190944
Step 469: 190944 + 408 = 191352
Step 470: 191352 + 408 = 191760
Step 471: 191760 + 408 = 192168
Step 472: 192168 + 408 = 192576
Step 473: 192576 + 408 = 192984
Step 474: 192984 + 408 = 193392
Step 475: 193392 + 408 = 193800
Step 476: 193800 + 408 = 194208
Step 477: 194208 + 408 = 194616
Step 478: 194616 + 408 = 195024
Step 479: 195024 + 408 = 195432
Step 480: 195432 + 408 = 195840
Step 481: 195840 + 408 = 196248
Step 482: 196248 + 408 = 196656
Step 483: 196656 + 408 = 197064
Step 484: 197064 + 408 = 197472
Step 485: 197472 + 408 = 197880
Step 486: 197880 + 408 = 198288

So, 408*486 = 198288