Sure thing, let's get straight to it. We start with 141 and we're going to multiply it by 456, which means adding 141 to itself 456 times.
Step 1: 0 + 141 = 141
Step 2: 141 + 141 = 282
Step 3: 282 + 141 = 423
Step 4: 423 + 141 = 564
Step 5: 564 + 141 = 705
Step 6: 705 + 141 = 846
Step 7: 846 + 141 = 987
Step 8: 987 + 141 = 1128
Step 9: 1128 + 141 = 1269
Step 10: 1269 + 141 = 1410
Step 11: 1410 + 141 = 1551
Step 12: 1551 + 141 = 1692
Step 13: 1692 + 141 = 1833
Step 14: 1833 + 141 = 1974
Step 15: 1974 + 141 = 2115
Step 16: 2115 + 141 = 2256
Step 17: 2256 + 141 = 2397
Step 18: 2397 + 141 = 2538
Step 19: 2538 + 141 = 2679
Step 20: 2679 + 141 = 2820
Step 21: 2820 + 141 = 2961
Step 22: 2961 + 141 = 3102
Step 23: 3102 + 141 = 3243
Step 24: 3243 + 141 = 3384
Step 25: 3384 + 141 = 3525
Step 26: 3525 + 141 = 3666
Step 27: 3666 + 141 = 3807
Step 28: 3807 + 141 = 3948
Step 29: 3948 + 141 = 4089
Step 30: 4089 + 141 = 4230
Step 31: 4230 + 141 = 4371
Step 32: 4371 + 141 = 4512
Step 33: 4512 + 141 = 4653
Step 34: 4653 + 141 = 4794
Step 35: 4794 + 141 = 4935
Step 36: 4935 + 141 = 5076
Step 37: 5076 + 141 = 5217
Step 38: 5217 + 141 = 5358
Step 39: 5358 + 141 = 5499
Step 40: 5499 + 141 = 5640
Step 41: 5640 + 141 = 5781
Step 42: 5781 + 141 = 5922
Step 43: 5922 + 141 = 6063
Step 44: 6063 + 141 = 6204
Step 45: 6204 + 141 = 6345
Step 46: 6345 + 141 = 6486
Step 47: 6486 + 141 = 6627
Step 48: 6627 + 141 = 6768
Step 49: 6768 + 141 = 6909
Step 50: 6909 + 141 = 7050
Step 51: 7050 + 141 = 7191
Step 52: 7191 + 141 = 7332
Step 53: 7332 + 141 = 7473
Step 54: 7473 + 141 = 7614
Step 55: 7614 + 141 = 7755
Step 56: 7755 + 141 = 7896
Step 57: 7896 + 141 = 8037
Step 58: 8037 + 141 = 8178
Step 59: 8178 + 141 = 8319
Step 60: 8319 + 141 = 8460
Step 61: 8460 + 141 = 8601
Step 62: 8601 + 141 = 8742
Step 63: 8742 + 141 = 8883
Step 64: 8883 + 141 = 9024
Step 65: 9024 + 141 = 9165
Step 66: 9165 + 141 = 9306
Step 67: 9306 + 141 = 9447
Step 68: 9447 + 141 = 9588
Step 69: 9588 + 141 = 9729
Step 70: 9729 + 141 = 9870
Step 71: 9870 + 141 = 10011
Step 72: 10011 + 141 = 10152
Step 73: 10152 + 141 = 10293
Step 74: 10293 + 141 = 10434
Step 75: 10434 + 141 = 10575
Step 76: 10575 + 141 = 10716
Step 77: 10716 + 141 = 10857
Step 78: 10857 + 141 = 10998
Step 79: 10998 + 141 = 11139
Step 80: 11139 + 141 = 11280
Step 81: 11280 + 141 = 11421
Step 82: 11421 + 141 = 11562
Step 83: 11562 + 141 = 11703
Step 84: 11703 + 141 = 11844
Step 85: 11844 + 141 = 11985
Step 86: 11985 + 141 = 12126
Step 87: 12126 + 141 = 12267
Step 88: 12267 + 141 = 12408
Step 89: 12408 + 141 = 12549
Step 90: 12549 + 141 = 12690
Step 91: 12690 + 141 = 12831
Step 92: 12831 + 141 = 12972
Step 93: 12972 + 141 = 13113
Step 94: 13113 + 141 = 13254
Step 95: 13254 + 141 = 13395
Step 96: 13395 + 141 = 13536
Step 97: 13536 + 141 = 13677
Step 98: 13677 + 141 = 13818
Step 99: 13818 + 141 = 13959
Step 100: 13959 + 141 = 14100
Step 101: 14100 + 141 = 14241
Step 102: 14241 + 141 = 14382
Step 103: 14382 + 141 = 14523
Step 104: 14523 + 141 = 14664
Step 105: 14664 + 141 = 14805
Step 106: 14805 + 141 = 14946
Step 107: 14946 + 141 = 15087
Step 108: 15087 + 141 = 15228
Step 109: 15228 + 141 = 15369
Step 110: 15369 + 141 = 15510
Step 111: 15510 + 141 = 15651
Step 112: 15651 + 141 = 15792
Step 113: 15792 + 141 = 15933
Step 114: 15933 + 141 = 16074
Step 115: 16074 + 141 = 16215
Step 116: 16215 + 141 = 16356
Step 117: 16356 + 141 = 16497
Step 118: 16497 + 141 = 16638
Step 119: 16638 + 141 = 16779
Step 120: 16779 + 141 = 16920
Step 121: 16920 + 141 = 17061
Step 122: 17061 + 141 = 17202
Step 123: 17202 + 141 = 17343
Step 124: 17343 + 141 = 17484
Step 125: 17484 + 141 = 17625
Step 126: 17625 + 141 = 17766
Step 127: 17766 + 141 = 17907
Step 128: 17907 + 141 = 18048
Step 129: 18048 + 141 = 18189
Step 130: 18189 + 141 = 18330
Step 131: 18330 + 141 = 18471
Step 132: 18471 + 141 = 18612
Step 133: 18612 + 141 = 18753
Step 134: 18753 + 141 = 18894
Step 135: 18894 + 141 = 19035
Step 136: 19035 + 141 = 19176
Step 137: 19176 + 141 = 19317
Step 138: 19317 + 141 = 19458
Step 139: 19458 + 141 = 19599
Step 140: 19599 + 141 = 19740
Step 141: 19740 + 141 = 19881
Step 142: 19881 + 141 = 20022
Step 143: 20022 + 141 = 20163
Step 144: 20163 + 141 = 20304
Step 145: 20304 + 141 = 20445
Step 146: 20445 + 141 = 20586
Step 147: 20586 + 141 = 20727
Step 148: 20727 + 141 = 20868
Step 149: 20868 + 141 = 21009
Step 150: 21009 + 141 = 21150
Step 151: 21150 + 141 = 21291
Step 152: 21291 + 141 = 21432
Step 153: 21432 + 141 = 21573
Step 154: 21573 + 141 = 21714
Step 155: 21714 + 141 = 21855
Step 156: 21855 + 141 = 21996
Step 157: 21996 + 141 = 22137
Step 158: 22137 + 141 = 22278
Step 159: 22278 + 141 = 22419
Step 160: 22419 + 141 = 22560
Step 161: 22560 + 141 = 22701
Step 162: 22701 + 141 = 22842
Step 163: 22842 + 141 = 22983
Step 164: 22983 + 141 = 23124
Step 165: 23124 + 141 = 23265
Step 166: 23265 + 141 = 23406
Step 167: 23406 + 141 = 23547
Step 168: 23547 + 141 = 23688
Step 169: 23688 + 141 = 23829
Step 170: 23829 + 141 = 23970
Step 171: 23970 + 141 = 24111
Step 172: 24111 + 141 = 24252
Step 173: 24252 + 141 = 24393
Step 174: 24393 + 141 = 24534
Step 175: 24534 + 141 = 24675
Step 176: 24675 + 141 = 24816
Step 177: 24816 + 141 = 24957
Step 178: 24957 + 141 = 25098
Step 179: 25098 + 141 = 25239
Step 180: 25239 + 141 = 25380
Step 181: 25380 + 141 = 25521
Step 182: 25521 + 141 = 25662
Step 183: 25662 + 141 = 25803
Step 184: 25803 + 141 = 25944
Step 185: 25944 + 141 = 26085
Step 186: 26085 + 141 = 26226
Step 187: 26226 + 141 = 26367
Step 188: 26367 + 141 = 26508
Step 189: 26508 + 141 = 26649
Step 190: 26649 + 141 = 26790
Step 191: 26790 + 141 = 26931
Step 192: 26931 + 141 = 27072
Step 193: 27072 + 141 = 27213
Step 194: 27213 + 141 = 27354
Step 195: 27354 + 141 = 27495
Step 196: 27495 + 141 = 27636
Step 197: 27636 + 141 = 27777
Step 198: 27777 + 141 = 27918
Step 199: 27918 + 141 = 28059
Step 200: 28059 + 141 = 28200
Step 201: 28200 + 141 = 28341
Step 202: 28341 + 141 = 28482
Step 203: 28482 + 141 = 28623
Step 204: 28623 + 141 = 28764
Step 205: 28764 + 141 = 28905
Step 206: 28905 + 141 = 29046
Step 207: 29046 + 141 = 29187
Step 208: 29187 + 141 = 29328
Step 209: 29328 + 141 = 29469
Step 210: 29469 + 141 = 29610
Step 211: 29610 + 141 = 29751
Step 212: 29751 + 141 = 29892
Step 213: 29892 + 141 = 30033
Step 214: 30033 + 141 = 30174
Step 215: 30174 + 141 = 30315
Step 216: 30315 + 141 = 30456
Step 217: 30456 + 141 = 30597
Step 218: 30597 + 141 = 30738
Step 219: 30738 + 141 = 30879
Step 220: 30879 + 141 = 31020
Step 221: 31020 + 141 = 31161
Step 222: 31161 + 141 = 31302
Step 223: 31302 + 141 = 31443
Step 224: 31443 + 141 = 31584
Step 225: 31584 + 141 = 31725
Step 226: 31725 + 141 = 31866
Step 227: 31866 + 141 = 32007
Step 228: 32007 + 141 = 32148
Step 229: 32148 + 141 = 32289
Step 230: 32289 + 141 = 32430
Step 231: 32430 + 141 = 32571
Step 232: 32571 + 141 = 32712
Step 233: 32712 + 141 = 32853
Step 234: 32853 + 141 = 32994
Step 235: 32994 + 141 = 33135
Step 236: 33135 + 141 = 33276
Step 237: 33276 + 141 = 33417
Step 238: 33417 + 141 = 33558
Step 239: 33558 + 141 = 33699
Step 240: 33699 + 141 = 33840
Step 241: 33840 + 141 = 33981
Step 242: 33981 + 141 = 34122
Step 243: 34122 + 141 = 34263
Step 244: 34263 + 141 = 34404
Step 245: 34404 + 141 = 34545
Step 246: 34545 + 141 = 34686
Step 247: 34686 + 141 = 34827
Step 248: 34827 + 141 = 34968
Step 249: 34968 + 141 = 35109
Step 250: 35109 + 141 = 35250
Step 251: 35250 + 141 = 35391
Step 252: 35391 + 141 = 35532
Step 253: 35532 + 141 = 35673
Step 254: 35673 + 141 = 35814
Step 255: 35814 + 141 = 35955
Step 256: 35955 + 141 = 36096
Step 257: 36096 + 141 = 36237
Step 258: 36237 + 141 = 36378
Step 259: 36378 + 141 = 36519
Step 260: 36519 + 141 = 36660
Step 261: 36660 + 141 = 36801
Step 262: 36801 + 141 = 36942
Step 263: 36942 + 141 = 37083
Step 264: 37083 + 141 = 37224
Step 265: 37224 + 141 = 37365
Step 266: 37365 + 141 = 37506
Step 267: 37506 + 141 = 37647
Step 268: 37647 + 141 = 37788
Step 269: 37788 + 141 = 37929
Step 270: 37929 + 141 = 38070
Step 271: 38070 + 141 = 38211
Step 272: 38211 + 141 = 38352
Step 273: 38352 + 141 = 38493
Step 274: 38493 + 141 = 38634
Step 275: 38634 + 141 = 38775
Step 276: 38775 + 141 = 38916
Step 277: 38916 + 141 = 39057
Step 278: 39057 + 141 = 39198
Step 279: 39198 + 141 = 39339
Step 280: 39339 + 141 = 39480
Step 281: 39480 + 141 = 39621
Step 282: 39621 + 141 = 39762
Step 283: 39762 + 141 = 39903
Step 284: 39903 + 141 = 40044
Step 285: 40044 + 141 = 40185
Step 286: 40185 + 141 = 40326
Step 287: 40326 + 141 = 40467
Step 288: 40467 + 141 = 40608
Step 289: 40608 + 141 = 40749
Step 290: 40749 + 141 = 40890
Step 291: 40890 + 141 = 41031
Step 292: 41031 + 141 = 41172
Step 293: 41172 + 141 = 41313
Step 294: 41313 + 141 = 41454
Step 295: 41454 + 141 = 41595
Step 296: 41595 + 141 = 41736
Step 297: 41736 + 141 = 41877
Step 298: 41877 + 141 = 42018
Step 299: 42018 + 141 = 42159
Step 300: 42159 + 141 = 42300
Step 301: 42300 + 141 = 42441
Step 302: 42441 + 141 = 42582
Step 303: 42582 + 141 = 42723
Step 304: 42723 + 141 = 42864
Step 305: 42864 + 141 = 43005
Step 306: 43005 + 141 = 43146
Step 307: 43146 + 141 = 43287
Step 308: 43287 + 141 = 43428
Step 309: 43428 + 141 = 43569
Step 310: 43569 + 141 = 43710
Step 311: 43710 + 141 = 43851
Step 312: 43851 + 141 = 43992
Step 313: 43992 + 141 = 44133
Step 314: 44133 + 141 = 44274
Step 315: 44274 + 141 = 44415
Step 316: 44415 + 141 = 44556
Step 317: 44556 + 141 = 44697
Step 318: 44697 + 141 = 44838
Step 319: 44838 + 141 = 44979
Step 320: 44979 + 141 = 45120
Step 321: 45120 + 141 = 45261
Step 322: 45261 + 141 = 45402
Step 323: 45402 + 141 = 45543
Step 324: 45543 + 141 = 45684
Step 325: 45684 + 141 = 45825
Step 326: 45825 + 141 = 45966
Step 327: 45966 + 141 = 46107
Step 328: 46107 + 141 = 46248
Step 329: 46248 + 141 = 46389
Step 330: 46389 + 141 = 46530
Step 331: 46530 + 141 = 46671
Step 332: 46671 + 141 = 46812
Step 333: 46812 + 141 = 46953
Step 334: 46953 + 141 = 47094
Step 335: 47094 + 141 = 47235
Step 336: 47235 + 141 = 47376
Step 337: 47376 + 141 = 47517
Step 338: 47517 + 141 = 47658
Step 339: 47658 + 141 = 47799
Step 340: 47799 + 141 = 47940
Step 341: 47940 + 141 = 48081
Step 342: 48081 + 141 = 48222
Step 343: 48222 + 141 = 48363
Step 344: 48363 + 141 = 48504
Step 345: 48504 + 141 = 48645
Step 346: 48645 + 141 = 48786
Step 347: 48786 + 141 = 48927
Step 348: 48927 + 141 = 49068
Step 349: 49068 + 141 = 49209
Step 350: 49209 + 141 = 49350
Step 351: 49350 + 141 = 49491
Step 352: 49491 + 141 = 49632
Step 353: 49632 + 141 = 49773
Step 354: 49773 + 141 = 49914
Step 355: 49914 + 141 = 50055
Step 356: 50055 + 141 = 50196
Step 357: 50196 + 141 = 50337
Step 358: 50337 + 141 = 50478
Step 359: 50478 + 141 = 50619
Step 360: 50619 + 141 = 50760
Step 361: 50760 + 141 = 50901
Step 362: 50901 + 141 = 51042
Step 363: 51042 + 141 = 51183
Step 364: 51183 + 141 = 51324
Step 365: 51324 + 141 = 51465
Step 366: 51465 + 141 = 51606
Step 367: 51606 + 141 = 51747
Step 368: 51747 + 141 = 51888
Step 369: 51888 + 141 = 52029
Step 370: 52029 + 141 = 52170
Step 371: 52170 + 141 = 52311
Step 372: 52311 + 141 = 52452
Step 373: 52452 + 141 = 52593
Step 374: 52593 + 141 = 52734
Step 375: 52734 + 141 = 52875
Step 376: 52875 + 141 = 53016
Step 377: 53016 + 141 = 53157
Step 378: 53157 + 141 = 53298
Step 379: 53298 + 141 = 53439
Step 380: 53439 + 141 = 53580
Step 381: 53580 + 141 = 53721
Step 382: 53721 + 141 = 53862
Step 383: 53862 + 141 = 54003
Step 384: 54003 + 141 = 54144
Step 385: 54144 + 141 = 54285
Step 386: 54285 + 141 = 54426
Step 387: 54426 + 141 = 54567
Step 388: 54567 + 141 = 54708
Step 389: 54708 + 141 = 54849
Step 390: 54849 + 141 = 54990
Step 391: 54990 + 141 = 55131
Step 392: 55131 + 141 = 55272
Step 393: 55272 + 141 = 55413
Step 394: 55413 + 141 = 55554
Step 395: 55554 + 141 = 55695
Step 396: 55695 + 141 = 55836
Step 397: 55836 + 141 = 55977
Step 398: 55977 + 141 = 56118
Step 399: 56118 + 141 = 56259
Step 400: 56259 + 141 = 56400
Step 401: 56400 + 141 = 56541
Step 402: 56541 + 141 = 56682
Step 403: 56682 + 141 = 56823
Step 404: 56823 + 141 = 56964
Step 405: 56964 + 141 = 57105
Step 406: 57105 + 141 = 57246
Step 407: 57246 + 141 = 57387
Step 408: 57387 + 141 = 57528
Step 409: 57528 + 141 = 57669
Step 410: 57669 + 141 = 57810
Step 411: 57810 + 141 = 57951
Step 412: 57951 + 141 = 58092
Step 413: 58092 + 141 = 58233
Step 414: 58233 + 141 = 58374
Step 415: 58374 + 141 = 58515
Step 416: 58515 + 141 = 58656
Step 417: 58656 + 141 = 58797
Step 418: 58797 + 141 = 58938
Step 419: 58938 + 141 = 59079
Step 420: 59079 + 141 = 59220
Step 421: 59220 + 141 = 59361
Step 422: 59361 + 141 = 59502
Step 423: 59502 + 141 = 59643
Step 424: 59643 + 141 = 59784
Step 425: 59784 + 141 = 59925
Step 426: 59925 + 141 = 60066
Step 427: 60066 + 141 = 60207
Step 428: 60207 + 141 = 60348
Step 429: 60348 + 141 = 60489
Step 430: 60489 + 141 = 60630
Step 431: 60630 + 141 = 60771
Step 432: 60771 + 141 = 60912
Step 433: 60912 + 141 = 61053
Step 434: 61053 + 141 = 61194
Step 435: 61194 + 141 = 61335
Step 436: 61335 + 141 = 61476
Step 437: 61476 + 141 = 61617
Step 438: 61617 + 141 = 61758
Step 439: 61758 + 141 = 61899
Step 440: 61899 + 141 = 62040
Step 441: 62040 + 141 = 62181
Step 442: 62181 + 141 = 62322
Step 443: 62322 + 141 = 62463
Step 444: 62463 + 141 = 62604
Step 445: 62604 + 141 = 62745
Step 446: 62745 + 141 = 62886
Step 447: 62886 + 141 = 63027
Step 448: 63027 + 141 = 63168
Step 449: 63168 + 141 = 63309
Step 450: 63309 + 141 = 63450
Step 451: 63450 + 141 = 63591
Step 452: 63591 + 141 = 63732
Step 453: 63732 + 141 = 63873
Step 454: 63873 + 141 = 64014
Step 455: 64014 + 141 = 64155
Step 456: 64155 + 141 = 64296

So, 141*456 = 64296