Alright, let's solve this math problem step by step. First, we have the number 816. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 454. So, we're going to take the number 816 and add it to itself 454 times.
Step 1: 0 + 816 = 816
Step 2: 816 + 816 = 1632
Step 3: 1632 + 816 = 2448
Step 4: 2448 + 816 = 3264
Step 5: 3264 + 816 = 4080
Step 6: 4080 + 816 = 4896
Step 7: 4896 + 816 = 5712
Step 8: 5712 + 816 = 6528
Step 9: 6528 + 816 = 7344
Step 10: 7344 + 816 = 8160
Step 11: 8160 + 816 = 8976
Step 12: 8976 + 816 = 9792
Step 13: 9792 + 816 = 10608
Step 14: 10608 + 816 = 11424
Step 15: 11424 + 816 = 12240
Step 16: 12240 + 816 = 13056
Step 17: 13056 + 816 = 13872
Step 18: 13872 + 816 = 14688
Step 19: 14688 + 816 = 15504
Step 20: 15504 + 816 = 16320
Step 21: 16320 + 816 = 17136
Step 22: 17136 + 816 = 17952
Step 23: 17952 + 816 = 18768
Step 24: 18768 + 816 = 19584
Step 25: 19584 + 816 = 20400
Step 26: 20400 + 816 = 21216
Step 27: 21216 + 816 = 22032
Step 28: 22032 + 816 = 22848
Step 29: 22848 + 816 = 23664
Step 30: 23664 + 816 = 24480
Step 31: 24480 + 816 = 25296
Step 32: 25296 + 816 = 26112
Step 33: 26112 + 816 = 26928
Step 34: 26928 + 816 = 27744
Step 35: 27744 + 816 = 28560
Step 36: 28560 + 816 = 29376
Step 37: 29376 + 816 = 30192
Step 38: 30192 + 816 = 31008
Step 39: 31008 + 816 = 31824
Step 40: 31824 + 816 = 32640
Step 41: 32640 + 816 = 33456
Step 42: 33456 + 816 = 34272
Step 43: 34272 + 816 = 35088
Step 44: 35088 + 816 = 35904
Step 45: 35904 + 816 = 36720
Step 46: 36720 + 816 = 37536
Step 47: 37536 + 816 = 38352
Step 48: 38352 + 816 = 39168
Step 49: 39168 + 816 = 39984
Step 50: 39984 + 816 = 40800
Step 51: 40800 + 816 = 41616
Step 52: 41616 + 816 = 42432
Step 53: 42432 + 816 = 43248
Step 54: 43248 + 816 = 44064
Step 55: 44064 + 816 = 44880
Step 56: 44880 + 816 = 45696
Step 57: 45696 + 816 = 46512
Step 58: 46512 + 816 = 47328
Step 59: 47328 + 816 = 48144
Step 60: 48144 + 816 = 48960
Step 61: 48960 + 816 = 49776
Step 62: 49776 + 816 = 50592
Step 63: 50592 + 816 = 51408
Step 64: 51408 + 816 = 52224
Step 65: 52224 + 816 = 53040
Step 66: 53040 + 816 = 53856
Step 67: 53856 + 816 = 54672
Step 68: 54672 + 816 = 55488
Step 69: 55488 + 816 = 56304
Step 70: 56304 + 816 = 57120
Step 71: 57120 + 816 = 57936
Step 72: 57936 + 816 = 58752
Step 73: 58752 + 816 = 59568
Step 74: 59568 + 816 = 60384
Step 75: 60384 + 816 = 61200
Step 76: 61200 + 816 = 62016
Step 77: 62016 + 816 = 62832
Step 78: 62832 + 816 = 63648
Step 79: 63648 + 816 = 64464
Step 80: 64464 + 816 = 65280
Step 81: 65280 + 816 = 66096
Step 82: 66096 + 816 = 66912
Step 83: 66912 + 816 = 67728
Step 84: 67728 + 816 = 68544
Step 85: 68544 + 816 = 69360
Step 86: 69360 + 816 = 70176
Step 87: 70176 + 816 = 70992
Step 88: 70992 + 816 = 71808
Step 89: 71808 + 816 = 72624
Step 90: 72624 + 816 = 73440
Step 91: 73440 + 816 = 74256
Step 92: 74256 + 816 = 75072
Step 93: 75072 + 816 = 75888
Step 94: 75888 + 816 = 76704
Step 95: 76704 + 816 = 77520
Step 96: 77520 + 816 = 78336
Step 97: 78336 + 816 = 79152
Step 98: 79152 + 816 = 79968
Step 99: 79968 + 816 = 80784
Step 100: 80784 + 816 = 81600
Step 101: 81600 + 816 = 82416
Step 102: 82416 + 816 = 83232
Step 103: 83232 + 816 = 84048
Step 104: 84048 + 816 = 84864
Step 105: 84864 + 816 = 85680
Step 106: 85680 + 816 = 86496
Step 107: 86496 + 816 = 87312
Step 108: 87312 + 816 = 88128
Step 109: 88128 + 816 = 88944
Step 110: 88944 + 816 = 89760
Step 111: 89760 + 816 = 90576
Step 112: 90576 + 816 = 91392
Step 113: 91392 + 816 = 92208
Step 114: 92208 + 816 = 93024
Step 115: 93024 + 816 = 93840
Step 116: 93840 + 816 = 94656
Step 117: 94656 + 816 = 95472
Step 118: 95472 + 816 = 96288
Step 119: 96288 + 816 = 97104
Step 120: 97104 + 816 = 97920
Step 121: 97920 + 816 = 98736
Step 122: 98736 + 816 = 99552
Step 123: 99552 + 816 = 100368
Step 124: 100368 + 816 = 101184
Step 125: 101184 + 816 = 102000
Step 126: 102000 + 816 = 102816
Step 127: 102816 + 816 = 103632
Step 128: 103632 + 816 = 104448
Step 129: 104448 + 816 = 105264
Step 130: 105264 + 816 = 106080
Step 131: 106080 + 816 = 106896
Step 132: 106896 + 816 = 107712
Step 133: 107712 + 816 = 108528
Step 134: 108528 + 816 = 109344
Step 135: 109344 + 816 = 110160
Step 136: 110160 + 816 = 110976
Step 137: 110976 + 816 = 111792
Step 138: 111792 + 816 = 112608
Step 139: 112608 + 816 = 113424
Step 140: 113424 + 816 = 114240
Step 141: 114240 + 816 = 115056
Step 142: 115056 + 816 = 115872
Step 143: 115872 + 816 = 116688
Step 144: 116688 + 816 = 117504
Step 145: 117504 + 816 = 118320
Step 146: 118320 + 816 = 119136
Step 147: 119136 + 816 = 119952
Step 148: 119952 + 816 = 120768
Step 149: 120768 + 816 = 121584
Step 150: 121584 + 816 = 122400
Step 151: 122400 + 816 = 123216
Step 152: 123216 + 816 = 124032
Step 153: 124032 + 816 = 124848
Step 154: 124848 + 816 = 125664
Step 155: 125664 + 816 = 126480
Step 156: 126480 + 816 = 127296
Step 157: 127296 + 816 = 128112
Step 158: 128112 + 816 = 128928
Step 159: 128928 + 816 = 129744
Step 160: 129744 + 816 = 130560
Step 161: 130560 + 816 = 131376
Step 162: 131376 + 816 = 132192
Step 163: 132192 + 816 = 133008
Step 164: 133008 + 816 = 133824
Step 165: 133824 + 816 = 134640
Step 166: 134640 + 816 = 135456
Step 167: 135456 + 816 = 136272
Step 168: 136272 + 816 = 137088
Step 169: 137088 + 816 = 137904
Step 170: 137904 + 816 = 138720
Step 171: 138720 + 816 = 139536
Step 172: 139536 + 816 = 140352
Step 173: 140352 + 816 = 141168
Step 174: 141168 + 816 = 141984
Step 175: 141984 + 816 = 142800
Step 176: 142800 + 816 = 143616
Step 177: 143616 + 816 = 144432
Step 178: 144432 + 816 = 145248
Step 179: 145248 + 816 = 146064
Step 180: 146064 + 816 = 146880
Step 181: 146880 + 816 = 147696
Step 182: 147696 + 816 = 148512
Step 183: 148512 + 816 = 149328
Step 184: 149328 + 816 = 150144
Step 185: 150144 + 816 = 150960
Step 186: 150960 + 816 = 151776
Step 187: 151776 + 816 = 152592
Step 188: 152592 + 816 = 153408
Step 189: 153408 + 816 = 154224
Step 190: 154224 + 816 = 155040
Step 191: 155040 + 816 = 155856
Step 192: 155856 + 816 = 156672
Step 193: 156672 + 816 = 157488
Step 194: 157488 + 816 = 158304
Step 195: 158304 + 816 = 159120
Step 196: 159120 + 816 = 159936
Step 197: 159936 + 816 = 160752
Step 198: 160752 + 816 = 161568
Step 199: 161568 + 816 = 162384
Step 200: 162384 + 816 = 163200
Step 201: 163200 + 816 = 164016
Step 202: 164016 + 816 = 164832
Step 203: 164832 + 816 = 165648
Step 204: 165648 + 816 = 166464
Step 205: 166464 + 816 = 167280
Step 206: 167280 + 816 = 168096
Step 207: 168096 + 816 = 168912
Step 208: 168912 + 816 = 169728
Step 209: 169728 + 816 = 170544
Step 210: 170544 + 816 = 171360
Step 211: 171360 + 816 = 172176
Step 212: 172176 + 816 = 172992
Step 213: 172992 + 816 = 173808
Step 214: 173808 + 816 = 174624
Step 215: 174624 + 816 = 175440
Step 216: 175440 + 816 = 176256
Step 217: 176256 + 816 = 177072
Step 218: 177072 + 816 = 177888
Step 219: 177888 + 816 = 178704
Step 220: 178704 + 816 = 179520
Step 221: 179520 + 816 = 180336
Step 222: 180336 + 816 = 181152
Step 223: 181152 + 816 = 181968
Step 224: 181968 + 816 = 182784
Step 225: 182784 + 816 = 183600
Step 226: 183600 + 816 = 184416
Step 227: 184416 + 816 = 185232
Step 228: 185232 + 816 = 186048
Step 229: 186048 + 816 = 186864
Step 230: 186864 + 816 = 187680
Step 231: 187680 + 816 = 188496
Step 232: 188496 + 816 = 189312
Step 233: 189312 + 816 = 190128
Step 234: 190128 + 816 = 190944
Step 235: 190944 + 816 = 191760
Step 236: 191760 + 816 = 192576
Step 237: 192576 + 816 = 193392
Step 238: 193392 + 816 = 194208
Step 239: 194208 + 816 = 195024
Step 240: 195024 + 816 = 195840
Step 241: 195840 + 816 = 196656
Step 242: 196656 + 816 = 197472
Step 243: 197472 + 816 = 198288
Step 244: 198288 + 816 = 199104
Step 245: 199104 + 816 = 199920
Step 246: 199920 + 816 = 200736
Step 247: 200736 + 816 = 201552
Step 248: 201552 + 816 = 202368
Step 249: 202368 + 816 = 203184
Step 250: 203184 + 816 = 204000
Step 251: 204000 + 816 = 204816
Step 252: 204816 + 816 = 205632
Step 253: 205632 + 816 = 206448
Step 254: 206448 + 816 = 207264
Step 255: 207264 + 816 = 208080
Step 256: 208080 + 816 = 208896
Step 257: 208896 + 816 = 209712
Step 258: 209712 + 816 = 210528
Step 259: 210528 + 816 = 211344
Step 260: 211344 + 816 = 212160
Step 261: 212160 + 816 = 212976
Step 262: 212976 + 816 = 213792
Step 263: 213792 + 816 = 214608
Step 264: 214608 + 816 = 215424
Step 265: 215424 + 816 = 216240
Step 266: 216240 + 816 = 217056
Step 267: 217056 + 816 = 217872
Step 268: 217872 + 816 = 218688
Step 269: 218688 + 816 = 219504
Step 270: 219504 + 816 = 220320
Step 271: 220320 + 816 = 221136
Step 272: 221136 + 816 = 221952
Step 273: 221952 + 816 = 222768
Step 274: 222768 + 816 = 223584
Step 275: 223584 + 816 = 224400
Step 276: 224400 + 816 = 225216
Step 277: 225216 + 816 = 226032
Step 278: 226032 + 816 = 226848
Step 279: 226848 + 816 = 227664
Step 280: 227664 + 816 = 228480
Step 281: 228480 + 816 = 229296
Step 282: 229296 + 816 = 230112
Step 283: 230112 + 816 = 230928
Step 284: 230928 + 816 = 231744
Step 285: 231744 + 816 = 232560
Step 286: 232560 + 816 = 233376
Step 287: 233376 + 816 = 234192
Step 288: 234192 + 816 = 235008
Step 289: 235008 + 816 = 235824
Step 290: 235824 + 816 = 236640
Step 291: 236640 + 816 = 237456
Step 292: 237456 + 816 = 238272
Step 293: 238272 + 816 = 239088
Step 294: 239088 + 816 = 239904
Step 295: 239904 + 816 = 240720
Step 296: 240720 + 816 = 241536
Step 297: 241536 + 816 = 242352
Step 298: 242352 + 816 = 243168
Step 299: 243168 + 816 = 243984
Step 300: 243984 + 816 = 244800
Step 301: 244800 + 816 = 245616
Step 302: 245616 + 816 = 246432
Step 303: 246432 + 816 = 247248
Step 304: 247248 + 816 = 248064
Step 305: 248064 + 816 = 248880
Step 306: 248880 + 816 = 249696
Step 307: 249696 + 816 = 250512
Step 308: 250512 + 816 = 251328
Step 309: 251328 + 816 = 252144
Step 310: 252144 + 816 = 252960
Step 311: 252960 + 816 = 253776
Step 312: 253776 + 816 = 254592
Step 313: 254592 + 816 = 255408
Step 314: 255408 + 816 = 256224
Step 315: 256224 + 816 = 257040
Step 316: 257040 + 816 = 257856
Step 317: 257856 + 816 = 258672
Step 318: 258672 + 816 = 259488
Step 319: 259488 + 816 = 260304
Step 320: 260304 + 816 = 261120
Step 321: 261120 + 816 = 261936
Step 322: 261936 + 816 = 262752
Step 323: 262752 + 816 = 263568
Step 324: 263568 + 816 = 264384
Step 325: 264384 + 816 = 265200
Step 326: 265200 + 816 = 266016
Step 327: 266016 + 816 = 266832
Step 328: 266832 + 816 = 267648
Step 329: 267648 + 816 = 268464
Step 330: 268464 + 816 = 269280
Step 331: 269280 + 816 = 270096
Step 332: 270096 + 816 = 270912
Step 333: 270912 + 816 = 271728
Step 334: 271728 + 816 = 272544
Step 335: 272544 + 816 = 273360
Step 336: 273360 + 816 = 274176
Step 337: 274176 + 816 = 274992
Step 338: 274992 + 816 = 275808
Step 339: 275808 + 816 = 276624
Step 340: 276624 + 816 = 277440
Step 341: 277440 + 816 = 278256
Step 342: 278256 + 816 = 279072
Step 343: 279072 + 816 = 279888
Step 344: 279888 + 816 = 280704
Step 345: 280704 + 816 = 281520
Step 346: 281520 + 816 = 282336
Step 347: 282336 + 816 = 283152
Step 348: 283152 + 816 = 283968
Step 349: 283968 + 816 = 284784
Step 350: 284784 + 816 = 285600
Step 351: 285600 + 816 = 286416
Step 352: 286416 + 816 = 287232
Step 353: 287232 + 816 = 288048
Step 354: 288048 + 816 = 288864
Step 355: 288864 + 816 = 289680
Step 356: 289680 + 816 = 290496
Step 357: 290496 + 816 = 291312
Step 358: 291312 + 816 = 292128
Step 359: 292128 + 816 = 292944
Step 360: 292944 + 816 = 293760
Step 361: 293760 + 816 = 294576
Step 362: 294576 + 816 = 295392
Step 363: 295392 + 816 = 296208
Step 364: 296208 + 816 = 297024
Step 365: 297024 + 816 = 297840
Step 366: 297840 + 816 = 298656
Step 367: 298656 + 816 = 299472
Step 368: 299472 + 816 = 300288
Step 369: 300288 + 816 = 301104
Step 370: 301104 + 816 = 301920
Step 371: 301920 + 816 = 302736
Step 372: 302736 + 816 = 303552
Step 373: 303552 + 816 = 304368
Step 374: 304368 + 816 = 305184
Step 375: 305184 + 816 = 306000
Step 376: 306000 + 816 = 306816
Step 377: 306816 + 816 = 307632
Step 378: 307632 + 816 = 308448
Step 379: 308448 + 816 = 309264
Step 380: 309264 + 816 = 310080
Step 381: 310080 + 816 = 310896
Step 382: 310896 + 816 = 311712
Step 383: 311712 + 816 = 312528
Step 384: 312528 + 816 = 313344
Step 385: 313344 + 816 = 314160
Step 386: 314160 + 816 = 314976
Step 387: 314976 + 816 = 315792
Step 388: 315792 + 816 = 316608
Step 389: 316608 + 816 = 317424
Step 390: 317424 + 816 = 318240
Step 391: 318240 + 816 = 319056
Step 392: 319056 + 816 = 319872
Step 393: 319872 + 816 = 320688
Step 394: 320688 + 816 = 321504
Step 395: 321504 + 816 = 322320
Step 396: 322320 + 816 = 323136
Step 397: 323136 + 816 = 323952
Step 398: 323952 + 816 = 324768
Step 399: 324768 + 816 = 325584
Step 400: 325584 + 816 = 326400
Step 401: 326400 + 816 = 327216
Step 402: 327216 + 816 = 328032
Step 403: 328032 + 816 = 328848
Step 404: 328848 + 816 = 329664
Step 405: 329664 + 816 = 330480
Step 406: 330480 + 816 = 331296
Step 407: 331296 + 816 = 332112
Step 408: 332112 + 816 = 332928
Step 409: 332928 + 816 = 333744
Step 410: 333744 + 816 = 334560
Step 411: 334560 + 816 = 335376
Step 412: 335376 + 816 = 336192
Step 413: 336192 + 816 = 337008
Step 414: 337008 + 816 = 337824
Step 415: 337824 + 816 = 338640
Step 416: 338640 + 816 = 339456
Step 417: 339456 + 816 = 340272
Step 418: 340272 + 816 = 341088
Step 419: 341088 + 816 = 341904
Step 420: 341904 + 816 = 342720
Step 421: 342720 + 816 = 343536
Step 422: 343536 + 816 = 344352
Step 423: 344352 + 816 = 345168
Step 424: 345168 + 816 = 345984
Step 425: 345984 + 816 = 346800
Step 426: 346800 + 816 = 347616
Step 427: 347616 + 816 = 348432
Step 428: 348432 + 816 = 349248
Step 429: 349248 + 816 = 350064
Step 430: 350064 + 816 = 350880
Step 431: 350880 + 816 = 351696
Step 432: 351696 + 816 = 352512
Step 433: 352512 + 816 = 353328
Step 434: 353328 + 816 = 354144
Step 435: 354144 + 816 = 354960
Step 436: 354960 + 816 = 355776
Step 437: 355776 + 816 = 356592
Step 438: 356592 + 816 = 357408
Step 439: 357408 + 816 = 358224
Step 440: 358224 + 816 = 359040
Step 441: 359040 + 816 = 359856
Step 442: 359856 + 816 = 360672
Step 443: 360672 + 816 = 361488
Step 444: 361488 + 816 = 362304
Step 445: 362304 + 816 = 363120
Step 446: 363120 + 816 = 363936
Step 447: 363936 + 816 = 364752
Step 448: 364752 + 816 = 365568
Step 449: 365568 + 816 = 366384
Step 450: 366384 + 816 = 367200
Step 451: 367200 + 816 = 368016
Step 452: 368016 + 816 = 368832
Step 453: 368832 + 816 = 369648
Step 454: 369648 + 816 = 370464

So, 816*454 = 370464