Let's get this math done. We have 631 and we're going to multiply it by 453. This is the same as taking 631 and adding it to itself 453 times.
Step 1: 0 + 631 = 631
Step 2: 631 + 631 = 1262
Step 3: 1262 + 631 = 1893
Step 4: 1893 + 631 = 2524
Step 5: 2524 + 631 = 3155
Step 6: 3155 + 631 = 3786
Step 7: 3786 + 631 = 4417
Step 8: 4417 + 631 = 5048
Step 9: 5048 + 631 = 5679
Step 10: 5679 + 631 = 6310
Step 11: 6310 + 631 = 6941
Step 12: 6941 + 631 = 7572
Step 13: 7572 + 631 = 8203
Step 14: 8203 + 631 = 8834
Step 15: 8834 + 631 = 9465
Step 16: 9465 + 631 = 10096
Step 17: 10096 + 631 = 10727
Step 18: 10727 + 631 = 11358
Step 19: 11358 + 631 = 11989
Step 20: 11989 + 631 = 12620
Step 21: 12620 + 631 = 13251
Step 22: 13251 + 631 = 13882
Step 23: 13882 + 631 = 14513
Step 24: 14513 + 631 = 15144
Step 25: 15144 + 631 = 15775
Step 26: 15775 + 631 = 16406
Step 27: 16406 + 631 = 17037
Step 28: 17037 + 631 = 17668
Step 29: 17668 + 631 = 18299
Step 30: 18299 + 631 = 18930
Step 31: 18930 + 631 = 19561
Step 32: 19561 + 631 = 20192
Step 33: 20192 + 631 = 20823
Step 34: 20823 + 631 = 21454
Step 35: 21454 + 631 = 22085
Step 36: 22085 + 631 = 22716
Step 37: 22716 + 631 = 23347
Step 38: 23347 + 631 = 23978
Step 39: 23978 + 631 = 24609
Step 40: 24609 + 631 = 25240
Step 41: 25240 + 631 = 25871
Step 42: 25871 + 631 = 26502
Step 43: 26502 + 631 = 27133
Step 44: 27133 + 631 = 27764
Step 45: 27764 + 631 = 28395
Step 46: 28395 + 631 = 29026
Step 47: 29026 + 631 = 29657
Step 48: 29657 + 631 = 30288
Step 49: 30288 + 631 = 30919
Step 50: 30919 + 631 = 31550
Step 51: 31550 + 631 = 32181
Step 52: 32181 + 631 = 32812
Step 53: 32812 + 631 = 33443
Step 54: 33443 + 631 = 34074
Step 55: 34074 + 631 = 34705
Step 56: 34705 + 631 = 35336
Step 57: 35336 + 631 = 35967
Step 58: 35967 + 631 = 36598
Step 59: 36598 + 631 = 37229
Step 60: 37229 + 631 = 37860
Step 61: 37860 + 631 = 38491
Step 62: 38491 + 631 = 39122
Step 63: 39122 + 631 = 39753
Step 64: 39753 + 631 = 40384
Step 65: 40384 + 631 = 41015
Step 66: 41015 + 631 = 41646
Step 67: 41646 + 631 = 42277
Step 68: 42277 + 631 = 42908
Step 69: 42908 + 631 = 43539
Step 70: 43539 + 631 = 44170
Step 71: 44170 + 631 = 44801
Step 72: 44801 + 631 = 45432
Step 73: 45432 + 631 = 46063
Step 74: 46063 + 631 = 46694
Step 75: 46694 + 631 = 47325
Step 76: 47325 + 631 = 47956
Step 77: 47956 + 631 = 48587
Step 78: 48587 + 631 = 49218
Step 79: 49218 + 631 = 49849
Step 80: 49849 + 631 = 50480
Step 81: 50480 + 631 = 51111
Step 82: 51111 + 631 = 51742
Step 83: 51742 + 631 = 52373
Step 84: 52373 + 631 = 53004
Step 85: 53004 + 631 = 53635
Step 86: 53635 + 631 = 54266
Step 87: 54266 + 631 = 54897
Step 88: 54897 + 631 = 55528
Step 89: 55528 + 631 = 56159
Step 90: 56159 + 631 = 56790
Step 91: 56790 + 631 = 57421
Step 92: 57421 + 631 = 58052
Step 93: 58052 + 631 = 58683
Step 94: 58683 + 631 = 59314
Step 95: 59314 + 631 = 59945
Step 96: 59945 + 631 = 60576
Step 97: 60576 + 631 = 61207
Step 98: 61207 + 631 = 61838
Step 99: 61838 + 631 = 62469
Step 100: 62469 + 631 = 63100
Step 101: 63100 + 631 = 63731
Step 102: 63731 + 631 = 64362
Step 103: 64362 + 631 = 64993
Step 104: 64993 + 631 = 65624
Step 105: 65624 + 631 = 66255
Step 106: 66255 + 631 = 66886
Step 107: 66886 + 631 = 67517
Step 108: 67517 + 631 = 68148
Step 109: 68148 + 631 = 68779
Step 110: 68779 + 631 = 69410
Step 111: 69410 + 631 = 70041
Step 112: 70041 + 631 = 70672
Step 113: 70672 + 631 = 71303
Step 114: 71303 + 631 = 71934
Step 115: 71934 + 631 = 72565
Step 116: 72565 + 631 = 73196
Step 117: 73196 + 631 = 73827
Step 118: 73827 + 631 = 74458
Step 119: 74458 + 631 = 75089
Step 120: 75089 + 631 = 75720
Step 121: 75720 + 631 = 76351
Step 122: 76351 + 631 = 76982
Step 123: 76982 + 631 = 77613
Step 124: 77613 + 631 = 78244
Step 125: 78244 + 631 = 78875
Step 126: 78875 + 631 = 79506
Step 127: 79506 + 631 = 80137
Step 128: 80137 + 631 = 80768
Step 129: 80768 + 631 = 81399
Step 130: 81399 + 631 = 82030
Step 131: 82030 + 631 = 82661
Step 132: 82661 + 631 = 83292
Step 133: 83292 + 631 = 83923
Step 134: 83923 + 631 = 84554
Step 135: 84554 + 631 = 85185
Step 136: 85185 + 631 = 85816
Step 137: 85816 + 631 = 86447
Step 138: 86447 + 631 = 87078
Step 139: 87078 + 631 = 87709
Step 140: 87709 + 631 = 88340
Step 141: 88340 + 631 = 88971
Step 142: 88971 + 631 = 89602
Step 143: 89602 + 631 = 90233
Step 144: 90233 + 631 = 90864
Step 145: 90864 + 631 = 91495
Step 146: 91495 + 631 = 92126
Step 147: 92126 + 631 = 92757
Step 148: 92757 + 631 = 93388
Step 149: 93388 + 631 = 94019
Step 150: 94019 + 631 = 94650
Step 151: 94650 + 631 = 95281
Step 152: 95281 + 631 = 95912
Step 153: 95912 + 631 = 96543
Step 154: 96543 + 631 = 97174
Step 155: 97174 + 631 = 97805
Step 156: 97805 + 631 = 98436
Step 157: 98436 + 631 = 99067
Step 158: 99067 + 631 = 99698
Step 159: 99698 + 631 = 100329
Step 160: 100329 + 631 = 100960
Step 161: 100960 + 631 = 101591
Step 162: 101591 + 631 = 102222
Step 163: 102222 + 631 = 102853
Step 164: 102853 + 631 = 103484
Step 165: 103484 + 631 = 104115
Step 166: 104115 + 631 = 104746
Step 167: 104746 + 631 = 105377
Step 168: 105377 + 631 = 106008
Step 169: 106008 + 631 = 106639
Step 170: 106639 + 631 = 107270
Step 171: 107270 + 631 = 107901
Step 172: 107901 + 631 = 108532
Step 173: 108532 + 631 = 109163
Step 174: 109163 + 631 = 109794
Step 175: 109794 + 631 = 110425
Step 176: 110425 + 631 = 111056
Step 177: 111056 + 631 = 111687
Step 178: 111687 + 631 = 112318
Step 179: 112318 + 631 = 112949
Step 180: 112949 + 631 = 113580
Step 181: 113580 + 631 = 114211
Step 182: 114211 + 631 = 114842
Step 183: 114842 + 631 = 115473
Step 184: 115473 + 631 = 116104
Step 185: 116104 + 631 = 116735
Step 186: 116735 + 631 = 117366
Step 187: 117366 + 631 = 117997
Step 188: 117997 + 631 = 118628
Step 189: 118628 + 631 = 119259
Step 190: 119259 + 631 = 119890
Step 191: 119890 + 631 = 120521
Step 192: 120521 + 631 = 121152
Step 193: 121152 + 631 = 121783
Step 194: 121783 + 631 = 122414
Step 195: 122414 + 631 = 123045
Step 196: 123045 + 631 = 123676
Step 197: 123676 + 631 = 124307
Step 198: 124307 + 631 = 124938
Step 199: 124938 + 631 = 125569
Step 200: 125569 + 631 = 126200
Step 201: 126200 + 631 = 126831
Step 202: 126831 + 631 = 127462
Step 203: 127462 + 631 = 128093
Step 204: 128093 + 631 = 128724
Step 205: 128724 + 631 = 129355
Step 206: 129355 + 631 = 129986
Step 207: 129986 + 631 = 130617
Step 208: 130617 + 631 = 131248
Step 209: 131248 + 631 = 131879
Step 210: 131879 + 631 = 132510
Step 211: 132510 + 631 = 133141
Step 212: 133141 + 631 = 133772
Step 213: 133772 + 631 = 134403
Step 214: 134403 + 631 = 135034
Step 215: 135034 + 631 = 135665
Step 216: 135665 + 631 = 136296
Step 217: 136296 + 631 = 136927
Step 218: 136927 + 631 = 137558
Step 219: 137558 + 631 = 138189
Step 220: 138189 + 631 = 138820
Step 221: 138820 + 631 = 139451
Step 222: 139451 + 631 = 140082
Step 223: 140082 + 631 = 140713
Step 224: 140713 + 631 = 141344
Step 225: 141344 + 631 = 141975
Step 226: 141975 + 631 = 142606
Step 227: 142606 + 631 = 143237
Step 228: 143237 + 631 = 143868
Step 229: 143868 + 631 = 144499
Step 230: 144499 + 631 = 145130
Step 231: 145130 + 631 = 145761
Step 232: 145761 + 631 = 146392
Step 233: 146392 + 631 = 147023
Step 234: 147023 + 631 = 147654
Step 235: 147654 + 631 = 148285
Step 236: 148285 + 631 = 148916
Step 237: 148916 + 631 = 149547
Step 238: 149547 + 631 = 150178
Step 239: 150178 + 631 = 150809
Step 240: 150809 + 631 = 151440
Step 241: 151440 + 631 = 152071
Step 242: 152071 + 631 = 152702
Step 243: 152702 + 631 = 153333
Step 244: 153333 + 631 = 153964
Step 245: 153964 + 631 = 154595
Step 246: 154595 + 631 = 155226
Step 247: 155226 + 631 = 155857
Step 248: 155857 + 631 = 156488
Step 249: 156488 + 631 = 157119
Step 250: 157119 + 631 = 157750
Step 251: 157750 + 631 = 158381
Step 252: 158381 + 631 = 159012
Step 253: 159012 + 631 = 159643
Step 254: 159643 + 631 = 160274
Step 255: 160274 + 631 = 160905
Step 256: 160905 + 631 = 161536
Step 257: 161536 + 631 = 162167
Step 258: 162167 + 631 = 162798
Step 259: 162798 + 631 = 163429
Step 260: 163429 + 631 = 164060
Step 261: 164060 + 631 = 164691
Step 262: 164691 + 631 = 165322
Step 263: 165322 + 631 = 165953
Step 264: 165953 + 631 = 166584
Step 265: 166584 + 631 = 167215
Step 266: 167215 + 631 = 167846
Step 267: 167846 + 631 = 168477
Step 268: 168477 + 631 = 169108
Step 269: 169108 + 631 = 169739
Step 270: 169739 + 631 = 170370
Step 271: 170370 + 631 = 171001
Step 272: 171001 + 631 = 171632
Step 273: 171632 + 631 = 172263
Step 274: 172263 + 631 = 172894
Step 275: 172894 + 631 = 173525
Step 276: 173525 + 631 = 174156
Step 277: 174156 + 631 = 174787
Step 278: 174787 + 631 = 175418
Step 279: 175418 + 631 = 176049
Step 280: 176049 + 631 = 176680
Step 281: 176680 + 631 = 177311
Step 282: 177311 + 631 = 177942
Step 283: 177942 + 631 = 178573
Step 284: 178573 + 631 = 179204
Step 285: 179204 + 631 = 179835
Step 286: 179835 + 631 = 180466
Step 287: 180466 + 631 = 181097
Step 288: 181097 + 631 = 181728
Step 289: 181728 + 631 = 182359
Step 290: 182359 + 631 = 182990
Step 291: 182990 + 631 = 183621
Step 292: 183621 + 631 = 184252
Step 293: 184252 + 631 = 184883
Step 294: 184883 + 631 = 185514
Step 295: 185514 + 631 = 186145
Step 296: 186145 + 631 = 186776
Step 297: 186776 + 631 = 187407
Step 298: 187407 + 631 = 188038
Step 299: 188038 + 631 = 188669
Step 300: 188669 + 631 = 189300
Step 301: 189300 + 631 = 189931
Step 302: 189931 + 631 = 190562
Step 303: 190562 + 631 = 191193
Step 304: 191193 + 631 = 191824
Step 305: 191824 + 631 = 192455
Step 306: 192455 + 631 = 193086
Step 307: 193086 + 631 = 193717
Step 308: 193717 + 631 = 194348
Step 309: 194348 + 631 = 194979
Step 310: 194979 + 631 = 195610
Step 311: 195610 + 631 = 196241
Step 312: 196241 + 631 = 196872
Step 313: 196872 + 631 = 197503
Step 314: 197503 + 631 = 198134
Step 315: 198134 + 631 = 198765
Step 316: 198765 + 631 = 199396
Step 317: 199396 + 631 = 200027
Step 318: 200027 + 631 = 200658
Step 319: 200658 + 631 = 201289
Step 320: 201289 + 631 = 201920
Step 321: 201920 + 631 = 202551
Step 322: 202551 + 631 = 203182
Step 323: 203182 + 631 = 203813
Step 324: 203813 + 631 = 204444
Step 325: 204444 + 631 = 205075
Step 326: 205075 + 631 = 205706
Step 327: 205706 + 631 = 206337
Step 328: 206337 + 631 = 206968
Step 329: 206968 + 631 = 207599
Step 330: 207599 + 631 = 208230
Step 331: 208230 + 631 = 208861
Step 332: 208861 + 631 = 209492
Step 333: 209492 + 631 = 210123
Step 334: 210123 + 631 = 210754
Step 335: 210754 + 631 = 211385
Step 336: 211385 + 631 = 212016
Step 337: 212016 + 631 = 212647
Step 338: 212647 + 631 = 213278
Step 339: 213278 + 631 = 213909
Step 340: 213909 + 631 = 214540
Step 341: 214540 + 631 = 215171
Step 342: 215171 + 631 = 215802
Step 343: 215802 + 631 = 216433
Step 344: 216433 + 631 = 217064
Step 345: 217064 + 631 = 217695
Step 346: 217695 + 631 = 218326
Step 347: 218326 + 631 = 218957
Step 348: 218957 + 631 = 219588
Step 349: 219588 + 631 = 220219
Step 350: 220219 + 631 = 220850
Step 351: 220850 + 631 = 221481
Step 352: 221481 + 631 = 222112
Step 353: 222112 + 631 = 222743
Step 354: 222743 + 631 = 223374
Step 355: 223374 + 631 = 224005
Step 356: 224005 + 631 = 224636
Step 357: 224636 + 631 = 225267
Step 358: 225267 + 631 = 225898
Step 359: 225898 + 631 = 226529
Step 360: 226529 + 631 = 227160
Step 361: 227160 + 631 = 227791
Step 362: 227791 + 631 = 228422
Step 363: 228422 + 631 = 229053
Step 364: 229053 + 631 = 229684
Step 365: 229684 + 631 = 230315
Step 366: 230315 + 631 = 230946
Step 367: 230946 + 631 = 231577
Step 368: 231577 + 631 = 232208
Step 369: 232208 + 631 = 232839
Step 370: 232839 + 631 = 233470
Step 371: 233470 + 631 = 234101
Step 372: 234101 + 631 = 234732
Step 373: 234732 + 631 = 235363
Step 374: 235363 + 631 = 235994
Step 375: 235994 + 631 = 236625
Step 376: 236625 + 631 = 237256
Step 377: 237256 + 631 = 237887
Step 378: 237887 + 631 = 238518
Step 379: 238518 + 631 = 239149
Step 380: 239149 + 631 = 239780
Step 381: 239780 + 631 = 240411
Step 382: 240411 + 631 = 241042
Step 383: 241042 + 631 = 241673
Step 384: 241673 + 631 = 242304
Step 385: 242304 + 631 = 242935
Step 386: 242935 + 631 = 243566
Step 387: 243566 + 631 = 244197
Step 388: 244197 + 631 = 244828
Step 389: 244828 + 631 = 245459
Step 390: 245459 + 631 = 246090
Step 391: 246090 + 631 = 246721
Step 392: 246721 + 631 = 247352
Step 393: 247352 + 631 = 247983
Step 394: 247983 + 631 = 248614
Step 395: 248614 + 631 = 249245
Step 396: 249245 + 631 = 249876
Step 397: 249876 + 631 = 250507
Step 398: 250507 + 631 = 251138
Step 399: 251138 + 631 = 251769
Step 400: 251769 + 631 = 252400
Step 401: 252400 + 631 = 253031
Step 402: 253031 + 631 = 253662
Step 403: 253662 + 631 = 254293
Step 404: 254293 + 631 = 254924
Step 405: 254924 + 631 = 255555
Step 406: 255555 + 631 = 256186
Step 407: 256186 + 631 = 256817
Step 408: 256817 + 631 = 257448
Step 409: 257448 + 631 = 258079
Step 410: 258079 + 631 = 258710
Step 411: 258710 + 631 = 259341
Step 412: 259341 + 631 = 259972
Step 413: 259972 + 631 = 260603
Step 414: 260603 + 631 = 261234
Step 415: 261234 + 631 = 261865
Step 416: 261865 + 631 = 262496
Step 417: 262496 + 631 = 263127
Step 418: 263127 + 631 = 263758
Step 419: 263758 + 631 = 264389
Step 420: 264389 + 631 = 265020
Step 421: 265020 + 631 = 265651
Step 422: 265651 + 631 = 266282
Step 423: 266282 + 631 = 266913
Step 424: 266913 + 631 = 267544
Step 425: 267544 + 631 = 268175
Step 426: 268175 + 631 = 268806
Step 427: 268806 + 631 = 269437
Step 428: 269437 + 631 = 270068
Step 429: 270068 + 631 = 270699
Step 430: 270699 + 631 = 271330
Step 431: 271330 + 631 = 271961
Step 432: 271961 + 631 = 272592
Step 433: 272592 + 631 = 273223
Step 434: 273223 + 631 = 273854
Step 435: 273854 + 631 = 274485
Step 436: 274485 + 631 = 275116
Step 437: 275116 + 631 = 275747
Step 438: 275747 + 631 = 276378
Step 439: 276378 + 631 = 277009
Step 440: 277009 + 631 = 277640
Step 441: 277640 + 631 = 278271
Step 442: 278271 + 631 = 278902
Step 443: 278902 + 631 = 279533
Step 444: 279533 + 631 = 280164
Step 445: 280164 + 631 = 280795
Step 446: 280795 + 631 = 281426
Step 447: 281426 + 631 = 282057
Step 448: 282057 + 631 = 282688
Step 449: 282688 + 631 = 283319
Step 450: 283319 + 631 = 283950
Step 451: 283950 + 631 = 284581
Step 452: 284581 + 631 = 285212
Step 453: 285212 + 631 = 285843

So, 631*453 = 285843