Sure thing! We've got 287 and we're gonna multiply it by 141. That's the same as adding 287 to itself 141 times.
Step 1: 0 + 287 = 287
Step 2: 287 + 287 = 574
Step 3: 574 + 287 = 861
Step 4: 861 + 287 = 1148
Step 5: 1148 + 287 = 1435
Step 6: 1435 + 287 = 1722
Step 7: 1722 + 287 = 2009
Step 8: 2009 + 287 = 2296
Step 9: 2296 + 287 = 2583
Step 10: 2583 + 287 = 2870
Step 11: 2870 + 287 = 3157
Step 12: 3157 + 287 = 3444
Step 13: 3444 + 287 = 3731
Step 14: 3731 + 287 = 4018
Step 15: 4018 + 287 = 4305
Step 16: 4305 + 287 = 4592
Step 17: 4592 + 287 = 4879
Step 18: 4879 + 287 = 5166
Step 19: 5166 + 287 = 5453
Step 20: 5453 + 287 = 5740
Step 21: 5740 + 287 = 6027
Step 22: 6027 + 287 = 6314
Step 23: 6314 + 287 = 6601
Step 24: 6601 + 287 = 6888
Step 25: 6888 + 287 = 7175
Step 26: 7175 + 287 = 7462
Step 27: 7462 + 287 = 7749
Step 28: 7749 + 287 = 8036
Step 29: 8036 + 287 = 8323
Step 30: 8323 + 287 = 8610
Step 31: 8610 + 287 = 8897
Step 32: 8897 + 287 = 9184
Step 33: 9184 + 287 = 9471
Step 34: 9471 + 287 = 9758
Step 35: 9758 + 287 = 10045
Step 36: 10045 + 287 = 10332
Step 37: 10332 + 287 = 10619
Step 38: 10619 + 287 = 10906
Step 39: 10906 + 287 = 11193
Step 40: 11193 + 287 = 11480
Step 41: 11480 + 287 = 11767
Step 42: 11767 + 287 = 12054
Step 43: 12054 + 287 = 12341
Step 44: 12341 + 287 = 12628
Step 45: 12628 + 287 = 12915
Step 46: 12915 + 287 = 13202
Step 47: 13202 + 287 = 13489
Step 48: 13489 + 287 = 13776
Step 49: 13776 + 287 = 14063
Step 50: 14063 + 287 = 14350
Step 51: 14350 + 287 = 14637
Step 52: 14637 + 287 = 14924
Step 53: 14924 + 287 = 15211
Step 54: 15211 + 287 = 15498
Step 55: 15498 + 287 = 15785
Step 56: 15785 + 287 = 16072
Step 57: 16072 + 287 = 16359
Step 58: 16359 + 287 = 16646
Step 59: 16646 + 287 = 16933
Step 60: 16933 + 287 = 17220
Step 61: 17220 + 287 = 17507
Step 62: 17507 + 287 = 17794
Step 63: 17794 + 287 = 18081
Step 64: 18081 + 287 = 18368
Step 65: 18368 + 287 = 18655
Step 66: 18655 + 287 = 18942
Step 67: 18942 + 287 = 19229
Step 68: 19229 + 287 = 19516
Step 69: 19516 + 287 = 19803
Step 70: 19803 + 287 = 20090
Step 71: 20090 + 287 = 20377
Step 72: 20377 + 287 = 20664
Step 73: 20664 + 287 = 20951
Step 74: 20951 + 287 = 21238
Step 75: 21238 + 287 = 21525
Step 76: 21525 + 287 = 21812
Step 77: 21812 + 287 = 22099
Step 78: 22099 + 287 = 22386
Step 79: 22386 + 287 = 22673
Step 80: 22673 + 287 = 22960
Step 81: 22960 + 287 = 23247
Step 82: 23247 + 287 = 23534
Step 83: 23534 + 287 = 23821
Step 84: 23821 + 287 = 24108
Step 85: 24108 + 287 = 24395
Step 86: 24395 + 287 = 24682
Step 87: 24682 + 287 = 24969
Step 88: 24969 + 287 = 25256
Step 89: 25256 + 287 = 25543
Step 90: 25543 + 287 = 25830
Step 91: 25830 + 287 = 26117
Step 92: 26117 + 287 = 26404
Step 93: 26404 + 287 = 26691
Step 94: 26691 + 287 = 26978
Step 95: 26978 + 287 = 27265
Step 96: 27265 + 287 = 27552
Step 97: 27552 + 287 = 27839
Step 98: 27839 + 287 = 28126
Step 99: 28126 + 287 = 28413
Step 100: 28413 + 287 = 28700
Step 101: 28700 + 287 = 28987
Step 102: 28987 + 287 = 29274
Step 103: 29274 + 287 = 29561
Step 104: 29561 + 287 = 29848
Step 105: 29848 + 287 = 30135
Step 106: 30135 + 287 = 30422
Step 107: 30422 + 287 = 30709
Step 108: 30709 + 287 = 30996
Step 109: 30996 + 287 = 31283
Step 110: 31283 + 287 = 31570
Step 111: 31570 + 287 = 31857
Step 112: 31857 + 287 = 32144
Step 113: 32144 + 287 = 32431
Step 114: 32431 + 287 = 32718
Step 115: 32718 + 287 = 33005
Step 116: 33005 + 287 = 33292
Step 117: 33292 + 287 = 33579
Step 118: 33579 + 287 = 33866
Step 119: 33866 + 287 = 34153
Step 120: 34153 + 287 = 34440
Step 121: 34440 + 287 = 34727
Step 122: 34727 + 287 = 35014
Step 123: 35014 + 287 = 35301
Step 124: 35301 + 287 = 35588
Step 125: 35588 + 287 = 35875
Step 126: 35875 + 287 = 36162
Step 127: 36162 + 287 = 36449
Step 128: 36449 + 287 = 36736
Step 129: 36736 + 287 = 37023
Step 130: 37023 + 287 = 37310
Step 131: 37310 + 287 = 37597
Step 132: 37597 + 287 = 37884
Step 133: 37884 + 287 = 38171
Step 134: 38171 + 287 = 38458
Step 135: 38458 + 287 = 38745
Step 136: 38745 + 287 = 39032
Step 137: 39032 + 287 = 39319
Step 138: 39319 + 287 = 39606
Step 139: 39606 + 287 = 39893
Step 140: 39893 + 287 = 40180
Step 141: 40180 + 287 = 40467

So, 287*141 = 40467