Let's get this math done. We have 605 and we're going to multiply it by 455. This is the same as taking 605 and adding it to itself 455 times.
Step 1: 0 + 605 = 605
Step 2: 605 + 605 = 1210
Step 3: 1210 + 605 = 1815
Step 4: 1815 + 605 = 2420
Step 5: 2420 + 605 = 3025
Step 6: 3025 + 605 = 3630
Step 7: 3630 + 605 = 4235
Step 8: 4235 + 605 = 4840
Step 9: 4840 + 605 = 5445
Step 10: 5445 + 605 = 6050
Step 11: 6050 + 605 = 6655
Step 12: 6655 + 605 = 7260
Step 13: 7260 + 605 = 7865
Step 14: 7865 + 605 = 8470
Step 15: 8470 + 605 = 9075
Step 16: 9075 + 605 = 9680
Step 17: 9680 + 605 = 10285
Step 18: 10285 + 605 = 10890
Step 19: 10890 + 605 = 11495
Step 20: 11495 + 605 = 12100
Step 21: 12100 + 605 = 12705
Step 22: 12705 + 605 = 13310
Step 23: 13310 + 605 = 13915
Step 24: 13915 + 605 = 14520
Step 25: 14520 + 605 = 15125
Step 26: 15125 + 605 = 15730
Step 27: 15730 + 605 = 16335
Step 28: 16335 + 605 = 16940
Step 29: 16940 + 605 = 17545
Step 30: 17545 + 605 = 18150
Step 31: 18150 + 605 = 18755
Step 32: 18755 + 605 = 19360
Step 33: 19360 + 605 = 19965
Step 34: 19965 + 605 = 20570
Step 35: 20570 + 605 = 21175
Step 36: 21175 + 605 = 21780
Step 37: 21780 + 605 = 22385
Step 38: 22385 + 605 = 22990
Step 39: 22990 + 605 = 23595
Step 40: 23595 + 605 = 24200
Step 41: 24200 + 605 = 24805
Step 42: 24805 + 605 = 25410
Step 43: 25410 + 605 = 26015
Step 44: 26015 + 605 = 26620
Step 45: 26620 + 605 = 27225
Step 46: 27225 + 605 = 27830
Step 47: 27830 + 605 = 28435
Step 48: 28435 + 605 = 29040
Step 49: 29040 + 605 = 29645
Step 50: 29645 + 605 = 30250
Step 51: 30250 + 605 = 30855
Step 52: 30855 + 605 = 31460
Step 53: 31460 + 605 = 32065
Step 54: 32065 + 605 = 32670
Step 55: 32670 + 605 = 33275
Step 56: 33275 + 605 = 33880
Step 57: 33880 + 605 = 34485
Step 58: 34485 + 605 = 35090
Step 59: 35090 + 605 = 35695
Step 60: 35695 + 605 = 36300
Step 61: 36300 + 605 = 36905
Step 62: 36905 + 605 = 37510
Step 63: 37510 + 605 = 38115
Step 64: 38115 + 605 = 38720
Step 65: 38720 + 605 = 39325
Step 66: 39325 + 605 = 39930
Step 67: 39930 + 605 = 40535
Step 68: 40535 + 605 = 41140
Step 69: 41140 + 605 = 41745
Step 70: 41745 + 605 = 42350
Step 71: 42350 + 605 = 42955
Step 72: 42955 + 605 = 43560
Step 73: 43560 + 605 = 44165
Step 74: 44165 + 605 = 44770
Step 75: 44770 + 605 = 45375
Step 76: 45375 + 605 = 45980
Step 77: 45980 + 605 = 46585
Step 78: 46585 + 605 = 47190
Step 79: 47190 + 605 = 47795
Step 80: 47795 + 605 = 48400
Step 81: 48400 + 605 = 49005
Step 82: 49005 + 605 = 49610
Step 83: 49610 + 605 = 50215
Step 84: 50215 + 605 = 50820
Step 85: 50820 + 605 = 51425
Step 86: 51425 + 605 = 52030
Step 87: 52030 + 605 = 52635
Step 88: 52635 + 605 = 53240
Step 89: 53240 + 605 = 53845
Step 90: 53845 + 605 = 54450
Step 91: 54450 + 605 = 55055
Step 92: 55055 + 605 = 55660
Step 93: 55660 + 605 = 56265
Step 94: 56265 + 605 = 56870
Step 95: 56870 + 605 = 57475
Step 96: 57475 + 605 = 58080
Step 97: 58080 + 605 = 58685
Step 98: 58685 + 605 = 59290
Step 99: 59290 + 605 = 59895
Step 100: 59895 + 605 = 60500
Step 101: 60500 + 605 = 61105
Step 102: 61105 + 605 = 61710
Step 103: 61710 + 605 = 62315
Step 104: 62315 + 605 = 62920
Step 105: 62920 + 605 = 63525
Step 106: 63525 + 605 = 64130
Step 107: 64130 + 605 = 64735
Step 108: 64735 + 605 = 65340
Step 109: 65340 + 605 = 65945
Step 110: 65945 + 605 = 66550
Step 111: 66550 + 605 = 67155
Step 112: 67155 + 605 = 67760
Step 113: 67760 + 605 = 68365
Step 114: 68365 + 605 = 68970
Step 115: 68970 + 605 = 69575
Step 116: 69575 + 605 = 70180
Step 117: 70180 + 605 = 70785
Step 118: 70785 + 605 = 71390
Step 119: 71390 + 605 = 71995
Step 120: 71995 + 605 = 72600
Step 121: 72600 + 605 = 73205
Step 122: 73205 + 605 = 73810
Step 123: 73810 + 605 = 74415
Step 124: 74415 + 605 = 75020
Step 125: 75020 + 605 = 75625
Step 126: 75625 + 605 = 76230
Step 127: 76230 + 605 = 76835
Step 128: 76835 + 605 = 77440
Step 129: 77440 + 605 = 78045
Step 130: 78045 + 605 = 78650
Step 131: 78650 + 605 = 79255
Step 132: 79255 + 605 = 79860
Step 133: 79860 + 605 = 80465
Step 134: 80465 + 605 = 81070
Step 135: 81070 + 605 = 81675
Step 136: 81675 + 605 = 82280
Step 137: 82280 + 605 = 82885
Step 138: 82885 + 605 = 83490
Step 139: 83490 + 605 = 84095
Step 140: 84095 + 605 = 84700
Step 141: 84700 + 605 = 85305
Step 142: 85305 + 605 = 85910
Step 143: 85910 + 605 = 86515
Step 144: 86515 + 605 = 87120
Step 145: 87120 + 605 = 87725
Step 146: 87725 + 605 = 88330
Step 147: 88330 + 605 = 88935
Step 148: 88935 + 605 = 89540
Step 149: 89540 + 605 = 90145
Step 150: 90145 + 605 = 90750
Step 151: 90750 + 605 = 91355
Step 152: 91355 + 605 = 91960
Step 153: 91960 + 605 = 92565
Step 154: 92565 + 605 = 93170
Step 155: 93170 + 605 = 93775
Step 156: 93775 + 605 = 94380
Step 157: 94380 + 605 = 94985
Step 158: 94985 + 605 = 95590
Step 159: 95590 + 605 = 96195
Step 160: 96195 + 605 = 96800
Step 161: 96800 + 605 = 97405
Step 162: 97405 + 605 = 98010
Step 163: 98010 + 605 = 98615
Step 164: 98615 + 605 = 99220
Step 165: 99220 + 605 = 99825
Step 166: 99825 + 605 = 100430
Step 167: 100430 + 605 = 101035
Step 168: 101035 + 605 = 101640
Step 169: 101640 + 605 = 102245
Step 170: 102245 + 605 = 102850
Step 171: 102850 + 605 = 103455
Step 172: 103455 + 605 = 104060
Step 173: 104060 + 605 = 104665
Step 174: 104665 + 605 = 105270
Step 175: 105270 + 605 = 105875
Step 176: 105875 + 605 = 106480
Step 177: 106480 + 605 = 107085
Step 178: 107085 + 605 = 107690
Step 179: 107690 + 605 = 108295
Step 180: 108295 + 605 = 108900
Step 181: 108900 + 605 = 109505
Step 182: 109505 + 605 = 110110
Step 183: 110110 + 605 = 110715
Step 184: 110715 + 605 = 111320
Step 185: 111320 + 605 = 111925
Step 186: 111925 + 605 = 112530
Step 187: 112530 + 605 = 113135
Step 188: 113135 + 605 = 113740
Step 189: 113740 + 605 = 114345
Step 190: 114345 + 605 = 114950
Step 191: 114950 + 605 = 115555
Step 192: 115555 + 605 = 116160
Step 193: 116160 + 605 = 116765
Step 194: 116765 + 605 = 117370
Step 195: 117370 + 605 = 117975
Step 196: 117975 + 605 = 118580
Step 197: 118580 + 605 = 119185
Step 198: 119185 + 605 = 119790
Step 199: 119790 + 605 = 120395
Step 200: 120395 + 605 = 121000
Step 201: 121000 + 605 = 121605
Step 202: 121605 + 605 = 122210
Step 203: 122210 + 605 = 122815
Step 204: 122815 + 605 = 123420
Step 205: 123420 + 605 = 124025
Step 206: 124025 + 605 = 124630
Step 207: 124630 + 605 = 125235
Step 208: 125235 + 605 = 125840
Step 209: 125840 + 605 = 126445
Step 210: 126445 + 605 = 127050
Step 211: 127050 + 605 = 127655
Step 212: 127655 + 605 = 128260
Step 213: 128260 + 605 = 128865
Step 214: 128865 + 605 = 129470
Step 215: 129470 + 605 = 130075
Step 216: 130075 + 605 = 130680
Step 217: 130680 + 605 = 131285
Step 218: 131285 + 605 = 131890
Step 219: 131890 + 605 = 132495
Step 220: 132495 + 605 = 133100
Step 221: 133100 + 605 = 133705
Step 222: 133705 + 605 = 134310
Step 223: 134310 + 605 = 134915
Step 224: 134915 + 605 = 135520
Step 225: 135520 + 605 = 136125
Step 226: 136125 + 605 = 136730
Step 227: 136730 + 605 = 137335
Step 228: 137335 + 605 = 137940
Step 229: 137940 + 605 = 138545
Step 230: 138545 + 605 = 139150
Step 231: 139150 + 605 = 139755
Step 232: 139755 + 605 = 140360
Step 233: 140360 + 605 = 140965
Step 234: 140965 + 605 = 141570
Step 235: 141570 + 605 = 142175
Step 236: 142175 + 605 = 142780
Step 237: 142780 + 605 = 143385
Step 238: 143385 + 605 = 143990
Step 239: 143990 + 605 = 144595
Step 240: 144595 + 605 = 145200
Step 241: 145200 + 605 = 145805
Step 242: 145805 + 605 = 146410
Step 243: 146410 + 605 = 147015
Step 244: 147015 + 605 = 147620
Step 245: 147620 + 605 = 148225
Step 246: 148225 + 605 = 148830
Step 247: 148830 + 605 = 149435
Step 248: 149435 + 605 = 150040
Step 249: 150040 + 605 = 150645
Step 250: 150645 + 605 = 151250
Step 251: 151250 + 605 = 151855
Step 252: 151855 + 605 = 152460
Step 253: 152460 + 605 = 153065
Step 254: 153065 + 605 = 153670
Step 255: 153670 + 605 = 154275
Step 256: 154275 + 605 = 154880
Step 257: 154880 + 605 = 155485
Step 258: 155485 + 605 = 156090
Step 259: 156090 + 605 = 156695
Step 260: 156695 + 605 = 157300
Step 261: 157300 + 605 = 157905
Step 262: 157905 + 605 = 158510
Step 263: 158510 + 605 = 159115
Step 264: 159115 + 605 = 159720
Step 265: 159720 + 605 = 160325
Step 266: 160325 + 605 = 160930
Step 267: 160930 + 605 = 161535
Step 268: 161535 + 605 = 162140
Step 269: 162140 + 605 = 162745
Step 270: 162745 + 605 = 163350
Step 271: 163350 + 605 = 163955
Step 272: 163955 + 605 = 164560
Step 273: 164560 + 605 = 165165
Step 274: 165165 + 605 = 165770
Step 275: 165770 + 605 = 166375
Step 276: 166375 + 605 = 166980
Step 277: 166980 + 605 = 167585
Step 278: 167585 + 605 = 168190
Step 279: 168190 + 605 = 168795
Step 280: 168795 + 605 = 169400
Step 281: 169400 + 605 = 170005
Step 282: 170005 + 605 = 170610
Step 283: 170610 + 605 = 171215
Step 284: 171215 + 605 = 171820
Step 285: 171820 + 605 = 172425
Step 286: 172425 + 605 = 173030
Step 287: 173030 + 605 = 173635
Step 288: 173635 + 605 = 174240
Step 289: 174240 + 605 = 174845
Step 290: 174845 + 605 = 175450
Step 291: 175450 + 605 = 176055
Step 292: 176055 + 605 = 176660
Step 293: 176660 + 605 = 177265
Step 294: 177265 + 605 = 177870
Step 295: 177870 + 605 = 178475
Step 296: 178475 + 605 = 179080
Step 297: 179080 + 605 = 179685
Step 298: 179685 + 605 = 180290
Step 299: 180290 + 605 = 180895
Step 300: 180895 + 605 = 181500
Step 301: 181500 + 605 = 182105
Step 302: 182105 + 605 = 182710
Step 303: 182710 + 605 = 183315
Step 304: 183315 + 605 = 183920
Step 305: 183920 + 605 = 184525
Step 306: 184525 + 605 = 185130
Step 307: 185130 + 605 = 185735
Step 308: 185735 + 605 = 186340
Step 309: 186340 + 605 = 186945
Step 310: 186945 + 605 = 187550
Step 311: 187550 + 605 = 188155
Step 312: 188155 + 605 = 188760
Step 313: 188760 + 605 = 189365
Step 314: 189365 + 605 = 189970
Step 315: 189970 + 605 = 190575
Step 316: 190575 + 605 = 191180
Step 317: 191180 + 605 = 191785
Step 318: 191785 + 605 = 192390
Step 319: 192390 + 605 = 192995
Step 320: 192995 + 605 = 193600
Step 321: 193600 + 605 = 194205
Step 322: 194205 + 605 = 194810
Step 323: 194810 + 605 = 195415
Step 324: 195415 + 605 = 196020
Step 325: 196020 + 605 = 196625
Step 326: 196625 + 605 = 197230
Step 327: 197230 + 605 = 197835
Step 328: 197835 + 605 = 198440
Step 329: 198440 + 605 = 199045
Step 330: 199045 + 605 = 199650
Step 331: 199650 + 605 = 200255
Step 332: 200255 + 605 = 200860
Step 333: 200860 + 605 = 201465
Step 334: 201465 + 605 = 202070
Step 335: 202070 + 605 = 202675
Step 336: 202675 + 605 = 203280
Step 337: 203280 + 605 = 203885
Step 338: 203885 + 605 = 204490
Step 339: 204490 + 605 = 205095
Step 340: 205095 + 605 = 205700
Step 341: 205700 + 605 = 206305
Step 342: 206305 + 605 = 206910
Step 343: 206910 + 605 = 207515
Step 344: 207515 + 605 = 208120
Step 345: 208120 + 605 = 208725
Step 346: 208725 + 605 = 209330
Step 347: 209330 + 605 = 209935
Step 348: 209935 + 605 = 210540
Step 349: 210540 + 605 = 211145
Step 350: 211145 + 605 = 211750
Step 351: 211750 + 605 = 212355
Step 352: 212355 + 605 = 212960
Step 353: 212960 + 605 = 213565
Step 354: 213565 + 605 = 214170
Step 355: 214170 + 605 = 214775
Step 356: 214775 + 605 = 215380
Step 357: 215380 + 605 = 215985
Step 358: 215985 + 605 = 216590
Step 359: 216590 + 605 = 217195
Step 360: 217195 + 605 = 217800
Step 361: 217800 + 605 = 218405
Step 362: 218405 + 605 = 219010
Step 363: 219010 + 605 = 219615
Step 364: 219615 + 605 = 220220
Step 365: 220220 + 605 = 220825
Step 366: 220825 + 605 = 221430
Step 367: 221430 + 605 = 222035
Step 368: 222035 + 605 = 222640
Step 369: 222640 + 605 = 223245
Step 370: 223245 + 605 = 223850
Step 371: 223850 + 605 = 224455
Step 372: 224455 + 605 = 225060
Step 373: 225060 + 605 = 225665
Step 374: 225665 + 605 = 226270
Step 375: 226270 + 605 = 226875
Step 376: 226875 + 605 = 227480
Step 377: 227480 + 605 = 228085
Step 378: 228085 + 605 = 228690
Step 379: 228690 + 605 = 229295
Step 380: 229295 + 605 = 229900
Step 381: 229900 + 605 = 230505
Step 382: 230505 + 605 = 231110
Step 383: 231110 + 605 = 231715
Step 384: 231715 + 605 = 232320
Step 385: 232320 + 605 = 232925
Step 386: 232925 + 605 = 233530
Step 387: 233530 + 605 = 234135
Step 388: 234135 + 605 = 234740
Step 389: 234740 + 605 = 235345
Step 390: 235345 + 605 = 235950
Step 391: 235950 + 605 = 236555
Step 392: 236555 + 605 = 237160
Step 393: 237160 + 605 = 237765
Step 394: 237765 + 605 = 238370
Step 395: 238370 + 605 = 238975
Step 396: 238975 + 605 = 239580
Step 397: 239580 + 605 = 240185
Step 398: 240185 + 605 = 240790
Step 399: 240790 + 605 = 241395
Step 400: 241395 + 605 = 242000
Step 401: 242000 + 605 = 242605
Step 402: 242605 + 605 = 243210
Step 403: 243210 + 605 = 243815
Step 404: 243815 + 605 = 244420
Step 405: 244420 + 605 = 245025
Step 406: 245025 + 605 = 245630
Step 407: 245630 + 605 = 246235
Step 408: 246235 + 605 = 246840
Step 409: 246840 + 605 = 247445
Step 410: 247445 + 605 = 248050
Step 411: 248050 + 605 = 248655
Step 412: 248655 + 605 = 249260
Step 413: 249260 + 605 = 249865
Step 414: 249865 + 605 = 250470
Step 415: 250470 + 605 = 251075
Step 416: 251075 + 605 = 251680
Step 417: 251680 + 605 = 252285
Step 418: 252285 + 605 = 252890
Step 419: 252890 + 605 = 253495
Step 420: 253495 + 605 = 254100
Step 421: 254100 + 605 = 254705
Step 422: 254705 + 605 = 255310
Step 423: 255310 + 605 = 255915
Step 424: 255915 + 605 = 256520
Step 425: 256520 + 605 = 257125
Step 426: 257125 + 605 = 257730
Step 427: 257730 + 605 = 258335
Step 428: 258335 + 605 = 258940
Step 429: 258940 + 605 = 259545
Step 430: 259545 + 605 = 260150
Step 431: 260150 + 605 = 260755
Step 432: 260755 + 605 = 261360
Step 433: 261360 + 605 = 261965
Step 434: 261965 + 605 = 262570
Step 435: 262570 + 605 = 263175
Step 436: 263175 + 605 = 263780
Step 437: 263780 + 605 = 264385
Step 438: 264385 + 605 = 264990
Step 439: 264990 + 605 = 265595
Step 440: 265595 + 605 = 266200
Step 441: 266200 + 605 = 266805
Step 442: 266805 + 605 = 267410
Step 443: 267410 + 605 = 268015
Step 444: 268015 + 605 = 268620
Step 445: 268620 + 605 = 269225
Step 446: 269225 + 605 = 269830
Step 447: 269830 + 605 = 270435
Step 448: 270435 + 605 = 271040
Step 449: 271040 + 605 = 271645
Step 450: 271645 + 605 = 272250
Step 451: 272250 + 605 = 272855
Step 452: 272855 + 605 = 273460
Step 453: 273460 + 605 = 274065
Step 454: 274065 + 605 = 274670
Step 455: 274670 + 605 = 275275

So, 605*455 = 275275