OK, let's crack this. We're given 537 and our task is to multiply it by 456. Essentially, we'll be adding 537 to itself 456 times.
Step 1: 0 + 537 = 537
Step 2: 537 + 537 = 1074
Step 3: 1074 + 537 = 1611
Step 4: 1611 + 537 = 2148
Step 5: 2148 + 537 = 2685
Step 6: 2685 + 537 = 3222
Step 7: 3222 + 537 = 3759
Step 8: 3759 + 537 = 4296
Step 9: 4296 + 537 = 4833
Step 10: 4833 + 537 = 5370
Step 11: 5370 + 537 = 5907
Step 12: 5907 + 537 = 6444
Step 13: 6444 + 537 = 6981
Step 14: 6981 + 537 = 7518
Step 15: 7518 + 537 = 8055
Step 16: 8055 + 537 = 8592
Step 17: 8592 + 537 = 9129
Step 18: 9129 + 537 = 9666
Step 19: 9666 + 537 = 10203
Step 20: 10203 + 537 = 10740
Step 21: 10740 + 537 = 11277
Step 22: 11277 + 537 = 11814
Step 23: 11814 + 537 = 12351
Step 24: 12351 + 537 = 12888
Step 25: 12888 + 537 = 13425
Step 26: 13425 + 537 = 13962
Step 27: 13962 + 537 = 14499
Step 28: 14499 + 537 = 15036
Step 29: 15036 + 537 = 15573
Step 30: 15573 + 537 = 16110
Step 31: 16110 + 537 = 16647
Step 32: 16647 + 537 = 17184
Step 33: 17184 + 537 = 17721
Step 34: 17721 + 537 = 18258
Step 35: 18258 + 537 = 18795
Step 36: 18795 + 537 = 19332
Step 37: 19332 + 537 = 19869
Step 38: 19869 + 537 = 20406
Step 39: 20406 + 537 = 20943
Step 40: 20943 + 537 = 21480
Step 41: 21480 + 537 = 22017
Step 42: 22017 + 537 = 22554
Step 43: 22554 + 537 = 23091
Step 44: 23091 + 537 = 23628
Step 45: 23628 + 537 = 24165
Step 46: 24165 + 537 = 24702
Step 47: 24702 + 537 = 25239
Step 48: 25239 + 537 = 25776
Step 49: 25776 + 537 = 26313
Step 50: 26313 + 537 = 26850
Step 51: 26850 + 537 = 27387
Step 52: 27387 + 537 = 27924
Step 53: 27924 + 537 = 28461
Step 54: 28461 + 537 = 28998
Step 55: 28998 + 537 = 29535
Step 56: 29535 + 537 = 30072
Step 57: 30072 + 537 = 30609
Step 58: 30609 + 537 = 31146
Step 59: 31146 + 537 = 31683
Step 60: 31683 + 537 = 32220
Step 61: 32220 + 537 = 32757
Step 62: 32757 + 537 = 33294
Step 63: 33294 + 537 = 33831
Step 64: 33831 + 537 = 34368
Step 65: 34368 + 537 = 34905
Step 66: 34905 + 537 = 35442
Step 67: 35442 + 537 = 35979
Step 68: 35979 + 537 = 36516
Step 69: 36516 + 537 = 37053
Step 70: 37053 + 537 = 37590
Step 71: 37590 + 537 = 38127
Step 72: 38127 + 537 = 38664
Step 73: 38664 + 537 = 39201
Step 74: 39201 + 537 = 39738
Step 75: 39738 + 537 = 40275
Step 76: 40275 + 537 = 40812
Step 77: 40812 + 537 = 41349
Step 78: 41349 + 537 = 41886
Step 79: 41886 + 537 = 42423
Step 80: 42423 + 537 = 42960
Step 81: 42960 + 537 = 43497
Step 82: 43497 + 537 = 44034
Step 83: 44034 + 537 = 44571
Step 84: 44571 + 537 = 45108
Step 85: 45108 + 537 = 45645
Step 86: 45645 + 537 = 46182
Step 87: 46182 + 537 = 46719
Step 88: 46719 + 537 = 47256
Step 89: 47256 + 537 = 47793
Step 90: 47793 + 537 = 48330
Step 91: 48330 + 537 = 48867
Step 92: 48867 + 537 = 49404
Step 93: 49404 + 537 = 49941
Step 94: 49941 + 537 = 50478
Step 95: 50478 + 537 = 51015
Step 96: 51015 + 537 = 51552
Step 97: 51552 + 537 = 52089
Step 98: 52089 + 537 = 52626
Step 99: 52626 + 537 = 53163
Step 100: 53163 + 537 = 53700
Step 101: 53700 + 537 = 54237
Step 102: 54237 + 537 = 54774
Step 103: 54774 + 537 = 55311
Step 104: 55311 + 537 = 55848
Step 105: 55848 + 537 = 56385
Step 106: 56385 + 537 = 56922
Step 107: 56922 + 537 = 57459
Step 108: 57459 + 537 = 57996
Step 109: 57996 + 537 = 58533
Step 110: 58533 + 537 = 59070
Step 111: 59070 + 537 = 59607
Step 112: 59607 + 537 = 60144
Step 113: 60144 + 537 = 60681
Step 114: 60681 + 537 = 61218
Step 115: 61218 + 537 = 61755
Step 116: 61755 + 537 = 62292
Step 117: 62292 + 537 = 62829
Step 118: 62829 + 537 = 63366
Step 119: 63366 + 537 = 63903
Step 120: 63903 + 537 = 64440
Step 121: 64440 + 537 = 64977
Step 122: 64977 + 537 = 65514
Step 123: 65514 + 537 = 66051
Step 124: 66051 + 537 = 66588
Step 125: 66588 + 537 = 67125
Step 126: 67125 + 537 = 67662
Step 127: 67662 + 537 = 68199
Step 128: 68199 + 537 = 68736
Step 129: 68736 + 537 = 69273
Step 130: 69273 + 537 = 69810
Step 131: 69810 + 537 = 70347
Step 132: 70347 + 537 = 70884
Step 133: 70884 + 537 = 71421
Step 134: 71421 + 537 = 71958
Step 135: 71958 + 537 = 72495
Step 136: 72495 + 537 = 73032
Step 137: 73032 + 537 = 73569
Step 138: 73569 + 537 = 74106
Step 139: 74106 + 537 = 74643
Step 140: 74643 + 537 = 75180
Step 141: 75180 + 537 = 75717
Step 142: 75717 + 537 = 76254
Step 143: 76254 + 537 = 76791
Step 144: 76791 + 537 = 77328
Step 145: 77328 + 537 = 77865
Step 146: 77865 + 537 = 78402
Step 147: 78402 + 537 = 78939
Step 148: 78939 + 537 = 79476
Step 149: 79476 + 537 = 80013
Step 150: 80013 + 537 = 80550
Step 151: 80550 + 537 = 81087
Step 152: 81087 + 537 = 81624
Step 153: 81624 + 537 = 82161
Step 154: 82161 + 537 = 82698
Step 155: 82698 + 537 = 83235
Step 156: 83235 + 537 = 83772
Step 157: 83772 + 537 = 84309
Step 158: 84309 + 537 = 84846
Step 159: 84846 + 537 = 85383
Step 160: 85383 + 537 = 85920
Step 161: 85920 + 537 = 86457
Step 162: 86457 + 537 = 86994
Step 163: 86994 + 537 = 87531
Step 164: 87531 + 537 = 88068
Step 165: 88068 + 537 = 88605
Step 166: 88605 + 537 = 89142
Step 167: 89142 + 537 = 89679
Step 168: 89679 + 537 = 90216
Step 169: 90216 + 537 = 90753
Step 170: 90753 + 537 = 91290
Step 171: 91290 + 537 = 91827
Step 172: 91827 + 537 = 92364
Step 173: 92364 + 537 = 92901
Step 174: 92901 + 537 = 93438
Step 175: 93438 + 537 = 93975
Step 176: 93975 + 537 = 94512
Step 177: 94512 + 537 = 95049
Step 178: 95049 + 537 = 95586
Step 179: 95586 + 537 = 96123
Step 180: 96123 + 537 = 96660
Step 181: 96660 + 537 = 97197
Step 182: 97197 + 537 = 97734
Step 183: 97734 + 537 = 98271
Step 184: 98271 + 537 = 98808
Step 185: 98808 + 537 = 99345
Step 186: 99345 + 537 = 99882
Step 187: 99882 + 537 = 100419
Step 188: 100419 + 537 = 100956
Step 189: 100956 + 537 = 101493
Step 190: 101493 + 537 = 102030
Step 191: 102030 + 537 = 102567
Step 192: 102567 + 537 = 103104
Step 193: 103104 + 537 = 103641
Step 194: 103641 + 537 = 104178
Step 195: 104178 + 537 = 104715
Step 196: 104715 + 537 = 105252
Step 197: 105252 + 537 = 105789
Step 198: 105789 + 537 = 106326
Step 199: 106326 + 537 = 106863
Step 200: 106863 + 537 = 107400
Step 201: 107400 + 537 = 107937
Step 202: 107937 + 537 = 108474
Step 203: 108474 + 537 = 109011
Step 204: 109011 + 537 = 109548
Step 205: 109548 + 537 = 110085
Step 206: 110085 + 537 = 110622
Step 207: 110622 + 537 = 111159
Step 208: 111159 + 537 = 111696
Step 209: 111696 + 537 = 112233
Step 210: 112233 + 537 = 112770
Step 211: 112770 + 537 = 113307
Step 212: 113307 + 537 = 113844
Step 213: 113844 + 537 = 114381
Step 214: 114381 + 537 = 114918
Step 215: 114918 + 537 = 115455
Step 216: 115455 + 537 = 115992
Step 217: 115992 + 537 = 116529
Step 218: 116529 + 537 = 117066
Step 219: 117066 + 537 = 117603
Step 220: 117603 + 537 = 118140
Step 221: 118140 + 537 = 118677
Step 222: 118677 + 537 = 119214
Step 223: 119214 + 537 = 119751
Step 224: 119751 + 537 = 120288
Step 225: 120288 + 537 = 120825
Step 226: 120825 + 537 = 121362
Step 227: 121362 + 537 = 121899
Step 228: 121899 + 537 = 122436
Step 229: 122436 + 537 = 122973
Step 230: 122973 + 537 = 123510
Step 231: 123510 + 537 = 124047
Step 232: 124047 + 537 = 124584
Step 233: 124584 + 537 = 125121
Step 234: 125121 + 537 = 125658
Step 235: 125658 + 537 = 126195
Step 236: 126195 + 537 = 126732
Step 237: 126732 + 537 = 127269
Step 238: 127269 + 537 = 127806
Step 239: 127806 + 537 = 128343
Step 240: 128343 + 537 = 128880
Step 241: 128880 + 537 = 129417
Step 242: 129417 + 537 = 129954
Step 243: 129954 + 537 = 130491
Step 244: 130491 + 537 = 131028
Step 245: 131028 + 537 = 131565
Step 246: 131565 + 537 = 132102
Step 247: 132102 + 537 = 132639
Step 248: 132639 + 537 = 133176
Step 249: 133176 + 537 = 133713
Step 250: 133713 + 537 = 134250
Step 251: 134250 + 537 = 134787
Step 252: 134787 + 537 = 135324
Step 253: 135324 + 537 = 135861
Step 254: 135861 + 537 = 136398
Step 255: 136398 + 537 = 136935
Step 256: 136935 + 537 = 137472
Step 257: 137472 + 537 = 138009
Step 258: 138009 + 537 = 138546
Step 259: 138546 + 537 = 139083
Step 260: 139083 + 537 = 139620
Step 261: 139620 + 537 = 140157
Step 262: 140157 + 537 = 140694
Step 263: 140694 + 537 = 141231
Step 264: 141231 + 537 = 141768
Step 265: 141768 + 537 = 142305
Step 266: 142305 + 537 = 142842
Step 267: 142842 + 537 = 143379
Step 268: 143379 + 537 = 143916
Step 269: 143916 + 537 = 144453
Step 270: 144453 + 537 = 144990
Step 271: 144990 + 537 = 145527
Step 272: 145527 + 537 = 146064
Step 273: 146064 + 537 = 146601
Step 274: 146601 + 537 = 147138
Step 275: 147138 + 537 = 147675
Step 276: 147675 + 537 = 148212
Step 277: 148212 + 537 = 148749
Step 278: 148749 + 537 = 149286
Step 279: 149286 + 537 = 149823
Step 280: 149823 + 537 = 150360
Step 281: 150360 + 537 = 150897
Step 282: 150897 + 537 = 151434
Step 283: 151434 + 537 = 151971
Step 284: 151971 + 537 = 152508
Step 285: 152508 + 537 = 153045
Step 286: 153045 + 537 = 153582
Step 287: 153582 + 537 = 154119
Step 288: 154119 + 537 = 154656
Step 289: 154656 + 537 = 155193
Step 290: 155193 + 537 = 155730
Step 291: 155730 + 537 = 156267
Step 292: 156267 + 537 = 156804
Step 293: 156804 + 537 = 157341
Step 294: 157341 + 537 = 157878
Step 295: 157878 + 537 = 158415
Step 296: 158415 + 537 = 158952
Step 297: 158952 + 537 = 159489
Step 298: 159489 + 537 = 160026
Step 299: 160026 + 537 = 160563
Step 300: 160563 + 537 = 161100
Step 301: 161100 + 537 = 161637
Step 302: 161637 + 537 = 162174
Step 303: 162174 + 537 = 162711
Step 304: 162711 + 537 = 163248
Step 305: 163248 + 537 = 163785
Step 306: 163785 + 537 = 164322
Step 307: 164322 + 537 = 164859
Step 308: 164859 + 537 = 165396
Step 309: 165396 + 537 = 165933
Step 310: 165933 + 537 = 166470
Step 311: 166470 + 537 = 167007
Step 312: 167007 + 537 = 167544
Step 313: 167544 + 537 = 168081
Step 314: 168081 + 537 = 168618
Step 315: 168618 + 537 = 169155
Step 316: 169155 + 537 = 169692
Step 317: 169692 + 537 = 170229
Step 318: 170229 + 537 = 170766
Step 319: 170766 + 537 = 171303
Step 320: 171303 + 537 = 171840
Step 321: 171840 + 537 = 172377
Step 322: 172377 + 537 = 172914
Step 323: 172914 + 537 = 173451
Step 324: 173451 + 537 = 173988
Step 325: 173988 + 537 = 174525
Step 326: 174525 + 537 = 175062
Step 327: 175062 + 537 = 175599
Step 328: 175599 + 537 = 176136
Step 329: 176136 + 537 = 176673
Step 330: 176673 + 537 = 177210
Step 331: 177210 + 537 = 177747
Step 332: 177747 + 537 = 178284
Step 333: 178284 + 537 = 178821
Step 334: 178821 + 537 = 179358
Step 335: 179358 + 537 = 179895
Step 336: 179895 + 537 = 180432
Step 337: 180432 + 537 = 180969
Step 338: 180969 + 537 = 181506
Step 339: 181506 + 537 = 182043
Step 340: 182043 + 537 = 182580
Step 341: 182580 + 537 = 183117
Step 342: 183117 + 537 = 183654
Step 343: 183654 + 537 = 184191
Step 344: 184191 + 537 = 184728
Step 345: 184728 + 537 = 185265
Step 346: 185265 + 537 = 185802
Step 347: 185802 + 537 = 186339
Step 348: 186339 + 537 = 186876
Step 349: 186876 + 537 = 187413
Step 350: 187413 + 537 = 187950
Step 351: 187950 + 537 = 188487
Step 352: 188487 + 537 = 189024
Step 353: 189024 + 537 = 189561
Step 354: 189561 + 537 = 190098
Step 355: 190098 + 537 = 190635
Step 356: 190635 + 537 = 191172
Step 357: 191172 + 537 = 191709
Step 358: 191709 + 537 = 192246
Step 359: 192246 + 537 = 192783
Step 360: 192783 + 537 = 193320
Step 361: 193320 + 537 = 193857
Step 362: 193857 + 537 = 194394
Step 363: 194394 + 537 = 194931
Step 364: 194931 + 537 = 195468
Step 365: 195468 + 537 = 196005
Step 366: 196005 + 537 = 196542
Step 367: 196542 + 537 = 197079
Step 368: 197079 + 537 = 197616
Step 369: 197616 + 537 = 198153
Step 370: 198153 + 537 = 198690
Step 371: 198690 + 537 = 199227
Step 372: 199227 + 537 = 199764
Step 373: 199764 + 537 = 200301
Step 374: 200301 + 537 = 200838
Step 375: 200838 + 537 = 201375
Step 376: 201375 + 537 = 201912
Step 377: 201912 + 537 = 202449
Step 378: 202449 + 537 = 202986
Step 379: 202986 + 537 = 203523
Step 380: 203523 + 537 = 204060
Step 381: 204060 + 537 = 204597
Step 382: 204597 + 537 = 205134
Step 383: 205134 + 537 = 205671
Step 384: 205671 + 537 = 206208
Step 385: 206208 + 537 = 206745
Step 386: 206745 + 537 = 207282
Step 387: 207282 + 537 = 207819
Step 388: 207819 + 537 = 208356
Step 389: 208356 + 537 = 208893
Step 390: 208893 + 537 = 209430
Step 391: 209430 + 537 = 209967
Step 392: 209967 + 537 = 210504
Step 393: 210504 + 537 = 211041
Step 394: 211041 + 537 = 211578
Step 395: 211578 + 537 = 212115
Step 396: 212115 + 537 = 212652
Step 397: 212652 + 537 = 213189
Step 398: 213189 + 537 = 213726
Step 399: 213726 + 537 = 214263
Step 400: 214263 + 537 = 214800
Step 401: 214800 + 537 = 215337
Step 402: 215337 + 537 = 215874
Step 403: 215874 + 537 = 216411
Step 404: 216411 + 537 = 216948
Step 405: 216948 + 537 = 217485
Step 406: 217485 + 537 = 218022
Step 407: 218022 + 537 = 218559
Step 408: 218559 + 537 = 219096
Step 409: 219096 + 537 = 219633
Step 410: 219633 + 537 = 220170
Step 411: 220170 + 537 = 220707
Step 412: 220707 + 537 = 221244
Step 413: 221244 + 537 = 221781
Step 414: 221781 + 537 = 222318
Step 415: 222318 + 537 = 222855
Step 416: 222855 + 537 = 223392
Step 417: 223392 + 537 = 223929
Step 418: 223929 + 537 = 224466
Step 419: 224466 + 537 = 225003
Step 420: 225003 + 537 = 225540
Step 421: 225540 + 537 = 226077
Step 422: 226077 + 537 = 226614
Step 423: 226614 + 537 = 227151
Step 424: 227151 + 537 = 227688
Step 425: 227688 + 537 = 228225
Step 426: 228225 + 537 = 228762
Step 427: 228762 + 537 = 229299
Step 428: 229299 + 537 = 229836
Step 429: 229836 + 537 = 230373
Step 430: 230373 + 537 = 230910
Step 431: 230910 + 537 = 231447
Step 432: 231447 + 537 = 231984
Step 433: 231984 + 537 = 232521
Step 434: 232521 + 537 = 233058
Step 435: 233058 + 537 = 233595
Step 436: 233595 + 537 = 234132
Step 437: 234132 + 537 = 234669
Step 438: 234669 + 537 = 235206
Step 439: 235206 + 537 = 235743
Step 440: 235743 + 537 = 236280
Step 441: 236280 + 537 = 236817
Step 442: 236817 + 537 = 237354
Step 443: 237354 + 537 = 237891
Step 444: 237891 + 537 = 238428
Step 445: 238428 + 537 = 238965
Step 446: 238965 + 537 = 239502
Step 447: 239502 + 537 = 240039
Step 448: 240039 + 537 = 240576
Step 449: 240576 + 537 = 241113
Step 450: 241113 + 537 = 241650
Step 451: 241650 + 537 = 242187
Step 452: 242187 + 537 = 242724
Step 453: 242724 + 537 = 243261
Step 454: 243261 + 537 = 243798
Step 455: 243798 + 537 = 244335
Step 456: 244335 + 537 = 244872

So, 537*456 = 244872