Let's roll up our sleeves and solve this. We have 377 and we're going to multiply it by 151, essentially adding 377 to itself 151 times.
Step 1: 0 + 377 = 377
Step 2: 377 + 377 = 754
Step 3: 754 + 377 = 1131
Step 4: 1131 + 377 = 1508
Step 5: 1508 + 377 = 1885
Step 6: 1885 + 377 = 2262
Step 7: 2262 + 377 = 2639
Step 8: 2639 + 377 = 3016
Step 9: 3016 + 377 = 3393
Step 10: 3393 + 377 = 3770
Step 11: 3770 + 377 = 4147
Step 12: 4147 + 377 = 4524
Step 13: 4524 + 377 = 4901
Step 14: 4901 + 377 = 5278
Step 15: 5278 + 377 = 5655
Step 16: 5655 + 377 = 6032
Step 17: 6032 + 377 = 6409
Step 18: 6409 + 377 = 6786
Step 19: 6786 + 377 = 7163
Step 20: 7163 + 377 = 7540
Step 21: 7540 + 377 = 7917
Step 22: 7917 + 377 = 8294
Step 23: 8294 + 377 = 8671
Step 24: 8671 + 377 = 9048
Step 25: 9048 + 377 = 9425
Step 26: 9425 + 377 = 9802
Step 27: 9802 + 377 = 10179
Step 28: 10179 + 377 = 10556
Step 29: 10556 + 377 = 10933
Step 30: 10933 + 377 = 11310
Step 31: 11310 + 377 = 11687
Step 32: 11687 + 377 = 12064
Step 33: 12064 + 377 = 12441
Step 34: 12441 + 377 = 12818
Step 35: 12818 + 377 = 13195
Step 36: 13195 + 377 = 13572
Step 37: 13572 + 377 = 13949
Step 38: 13949 + 377 = 14326
Step 39: 14326 + 377 = 14703
Step 40: 14703 + 377 = 15080
Step 41: 15080 + 377 = 15457
Step 42: 15457 + 377 = 15834
Step 43: 15834 + 377 = 16211
Step 44: 16211 + 377 = 16588
Step 45: 16588 + 377 = 16965
Step 46: 16965 + 377 = 17342
Step 47: 17342 + 377 = 17719
Step 48: 17719 + 377 = 18096
Step 49: 18096 + 377 = 18473
Step 50: 18473 + 377 = 18850
Step 51: 18850 + 377 = 19227
Step 52: 19227 + 377 = 19604
Step 53: 19604 + 377 = 19981
Step 54: 19981 + 377 = 20358
Step 55: 20358 + 377 = 20735
Step 56: 20735 + 377 = 21112
Step 57: 21112 + 377 = 21489
Step 58: 21489 + 377 = 21866
Step 59: 21866 + 377 = 22243
Step 60: 22243 + 377 = 22620
Step 61: 22620 + 377 = 22997
Step 62: 22997 + 377 = 23374
Step 63: 23374 + 377 = 23751
Step 64: 23751 + 377 = 24128
Step 65: 24128 + 377 = 24505
Step 66: 24505 + 377 = 24882
Step 67: 24882 + 377 = 25259
Step 68: 25259 + 377 = 25636
Step 69: 25636 + 377 = 26013
Step 70: 26013 + 377 = 26390
Step 71: 26390 + 377 = 26767
Step 72: 26767 + 377 = 27144
Step 73: 27144 + 377 = 27521
Step 74: 27521 + 377 = 27898
Step 75: 27898 + 377 = 28275
Step 76: 28275 + 377 = 28652
Step 77: 28652 + 377 = 29029
Step 78: 29029 + 377 = 29406
Step 79: 29406 + 377 = 29783
Step 80: 29783 + 377 = 30160
Step 81: 30160 + 377 = 30537
Step 82: 30537 + 377 = 30914
Step 83: 30914 + 377 = 31291
Step 84: 31291 + 377 = 31668
Step 85: 31668 + 377 = 32045
Step 86: 32045 + 377 = 32422
Step 87: 32422 + 377 = 32799
Step 88: 32799 + 377 = 33176
Step 89: 33176 + 377 = 33553
Step 90: 33553 + 377 = 33930
Step 91: 33930 + 377 = 34307
Step 92: 34307 + 377 = 34684
Step 93: 34684 + 377 = 35061
Step 94: 35061 + 377 = 35438
Step 95: 35438 + 377 = 35815
Step 96: 35815 + 377 = 36192
Step 97: 36192 + 377 = 36569
Step 98: 36569 + 377 = 36946
Step 99: 36946 + 377 = 37323
Step 100: 37323 + 377 = 37700
Step 101: 37700 + 377 = 38077
Step 102: 38077 + 377 = 38454
Step 103: 38454 + 377 = 38831
Step 104: 38831 + 377 = 39208
Step 105: 39208 + 377 = 39585
Step 106: 39585 + 377 = 39962
Step 107: 39962 + 377 = 40339
Step 108: 40339 + 377 = 40716
Step 109: 40716 + 377 = 41093
Step 110: 41093 + 377 = 41470
Step 111: 41470 + 377 = 41847
Step 112: 41847 + 377 = 42224
Step 113: 42224 + 377 = 42601
Step 114: 42601 + 377 = 42978
Step 115: 42978 + 377 = 43355
Step 116: 43355 + 377 = 43732
Step 117: 43732 + 377 = 44109
Step 118: 44109 + 377 = 44486
Step 119: 44486 + 377 = 44863
Step 120: 44863 + 377 = 45240
Step 121: 45240 + 377 = 45617
Step 122: 45617 + 377 = 45994
Step 123: 45994 + 377 = 46371
Step 124: 46371 + 377 = 46748
Step 125: 46748 + 377 = 47125
Step 126: 47125 + 377 = 47502
Step 127: 47502 + 377 = 47879
Step 128: 47879 + 377 = 48256
Step 129: 48256 + 377 = 48633
Step 130: 48633 + 377 = 49010
Step 131: 49010 + 377 = 49387
Step 132: 49387 + 377 = 49764
Step 133: 49764 + 377 = 50141
Step 134: 50141 + 377 = 50518
Step 135: 50518 + 377 = 50895
Step 136: 50895 + 377 = 51272
Step 137: 51272 + 377 = 51649
Step 138: 51649 + 377 = 52026
Step 139: 52026 + 377 = 52403
Step 140: 52403 + 377 = 52780
Step 141: 52780 + 377 = 53157
Step 142: 53157 + 377 = 53534
Step 143: 53534 + 377 = 53911
Step 144: 53911 + 377 = 54288
Step 145: 54288 + 377 = 54665
Step 146: 54665 + 377 = 55042
Step 147: 55042 + 377 = 55419
Step 148: 55419 + 377 = 55796
Step 149: 55796 + 377 = 56173
Step 150: 56173 + 377 = 56550
Step 151: 56550 + 377 = 56927

So, 377*151 = 56927