Alright, let's solve this math problem step by step. First, we have the number 641. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 151. So, we're going to take the number 641 and add it to itself 151 times.
Step 1: 0 + 641 = 641
Step 2: 641 + 641 = 1282
Step 3: 1282 + 641 = 1923
Step 4: 1923 + 641 = 2564
Step 5: 2564 + 641 = 3205
Step 6: 3205 + 641 = 3846
Step 7: 3846 + 641 = 4487
Step 8: 4487 + 641 = 5128
Step 9: 5128 + 641 = 5769
Step 10: 5769 + 641 = 6410
Step 11: 6410 + 641 = 7051
Step 12: 7051 + 641 = 7692
Step 13: 7692 + 641 = 8333
Step 14: 8333 + 641 = 8974
Step 15: 8974 + 641 = 9615
Step 16: 9615 + 641 = 10256
Step 17: 10256 + 641 = 10897
Step 18: 10897 + 641 = 11538
Step 19: 11538 + 641 = 12179
Step 20: 12179 + 641 = 12820
Step 21: 12820 + 641 = 13461
Step 22: 13461 + 641 = 14102
Step 23: 14102 + 641 = 14743
Step 24: 14743 + 641 = 15384
Step 25: 15384 + 641 = 16025
Step 26: 16025 + 641 = 16666
Step 27: 16666 + 641 = 17307
Step 28: 17307 + 641 = 17948
Step 29: 17948 + 641 = 18589
Step 30: 18589 + 641 = 19230
Step 31: 19230 + 641 = 19871
Step 32: 19871 + 641 = 20512
Step 33: 20512 + 641 = 21153
Step 34: 21153 + 641 = 21794
Step 35: 21794 + 641 = 22435
Step 36: 22435 + 641 = 23076
Step 37: 23076 + 641 = 23717
Step 38: 23717 + 641 = 24358
Step 39: 24358 + 641 = 24999
Step 40: 24999 + 641 = 25640
Step 41: 25640 + 641 = 26281
Step 42: 26281 + 641 = 26922
Step 43: 26922 + 641 = 27563
Step 44: 27563 + 641 = 28204
Step 45: 28204 + 641 = 28845
Step 46: 28845 + 641 = 29486
Step 47: 29486 + 641 = 30127
Step 48: 30127 + 641 = 30768
Step 49: 30768 + 641 = 31409
Step 50: 31409 + 641 = 32050
Step 51: 32050 + 641 = 32691
Step 52: 32691 + 641 = 33332
Step 53: 33332 + 641 = 33973
Step 54: 33973 + 641 = 34614
Step 55: 34614 + 641 = 35255
Step 56: 35255 + 641 = 35896
Step 57: 35896 + 641 = 36537
Step 58: 36537 + 641 = 37178
Step 59: 37178 + 641 = 37819
Step 60: 37819 + 641 = 38460
Step 61: 38460 + 641 = 39101
Step 62: 39101 + 641 = 39742
Step 63: 39742 + 641 = 40383
Step 64: 40383 + 641 = 41024
Step 65: 41024 + 641 = 41665
Step 66: 41665 + 641 = 42306
Step 67: 42306 + 641 = 42947
Step 68: 42947 + 641 = 43588
Step 69: 43588 + 641 = 44229
Step 70: 44229 + 641 = 44870
Step 71: 44870 + 641 = 45511
Step 72: 45511 + 641 = 46152
Step 73: 46152 + 641 = 46793
Step 74: 46793 + 641 = 47434
Step 75: 47434 + 641 = 48075
Step 76: 48075 + 641 = 48716
Step 77: 48716 + 641 = 49357
Step 78: 49357 + 641 = 49998
Step 79: 49998 + 641 = 50639
Step 80: 50639 + 641 = 51280
Step 81: 51280 + 641 = 51921
Step 82: 51921 + 641 = 52562
Step 83: 52562 + 641 = 53203
Step 84: 53203 + 641 = 53844
Step 85: 53844 + 641 = 54485
Step 86: 54485 + 641 = 55126
Step 87: 55126 + 641 = 55767
Step 88: 55767 + 641 = 56408
Step 89: 56408 + 641 = 57049
Step 90: 57049 + 641 = 57690
Step 91: 57690 + 641 = 58331
Step 92: 58331 + 641 = 58972
Step 93: 58972 + 641 = 59613
Step 94: 59613 + 641 = 60254
Step 95: 60254 + 641 = 60895
Step 96: 60895 + 641 = 61536
Step 97: 61536 + 641 = 62177
Step 98: 62177 + 641 = 62818
Step 99: 62818 + 641 = 63459
Step 100: 63459 + 641 = 64100
Step 101: 64100 + 641 = 64741
Step 102: 64741 + 641 = 65382
Step 103: 65382 + 641 = 66023
Step 104: 66023 + 641 = 66664
Step 105: 66664 + 641 = 67305
Step 106: 67305 + 641 = 67946
Step 107: 67946 + 641 = 68587
Step 108: 68587 + 641 = 69228
Step 109: 69228 + 641 = 69869
Step 110: 69869 + 641 = 70510
Step 111: 70510 + 641 = 71151
Step 112: 71151 + 641 = 71792
Step 113: 71792 + 641 = 72433
Step 114: 72433 + 641 = 73074
Step 115: 73074 + 641 = 73715
Step 116: 73715 + 641 = 74356
Step 117: 74356 + 641 = 74997
Step 118: 74997 + 641 = 75638
Step 119: 75638 + 641 = 76279
Step 120: 76279 + 641 = 76920
Step 121: 76920 + 641 = 77561
Step 122: 77561 + 641 = 78202
Step 123: 78202 + 641 = 78843
Step 124: 78843 + 641 = 79484
Step 125: 79484 + 641 = 80125
Step 126: 80125 + 641 = 80766
Step 127: 80766 + 641 = 81407
Step 128: 81407 + 641 = 82048
Step 129: 82048 + 641 = 82689
Step 130: 82689 + 641 = 83330
Step 131: 83330 + 641 = 83971
Step 132: 83971 + 641 = 84612
Step 133: 84612 + 641 = 85253
Step 134: 85253 + 641 = 85894
Step 135: 85894 + 641 = 86535
Step 136: 86535 + 641 = 87176
Step 137: 87176 + 641 = 87817
Step 138: 87817 + 641 = 88458
Step 139: 88458 + 641 = 89099
Step 140: 89099 + 641 = 89740
Step 141: 89740 + 641 = 90381
Step 142: 90381 + 641 = 91022
Step 143: 91022 + 641 = 91663
Step 144: 91663 + 641 = 92304
Step 145: 92304 + 641 = 92945
Step 146: 92945 + 641 = 93586
Step 147: 93586 + 641 = 94227
Step 148: 94227 + 641 = 94868
Step 149: 94868 + 641 = 95509
Step 150: 95509 + 641 = 96150
Step 151: 96150 + 641 = 96791

So, 641*151 = 96791