Without delay, let's solve this. We've got 943 and we will be multiplying it by 91, that is, adding 943 to itself 91 times.
Step 1: 0 + 943 = 943
Step 2: 943 + 943 = 1886
Step 3: 1886 + 943 = 2829
Step 4: 2829 + 943 = 3772
Step 5: 3772 + 943 = 4715
Step 6: 4715 + 943 = 5658
Step 7: 5658 + 943 = 6601
Step 8: 6601 + 943 = 7544
Step 9: 7544 + 943 = 8487
Step 10: 8487 + 943 = 9430
Step 11: 9430 + 943 = 10373
Step 12: 10373 + 943 = 11316
Step 13: 11316 + 943 = 12259
Step 14: 12259 + 943 = 13202
Step 15: 13202 + 943 = 14145
Step 16: 14145 + 943 = 15088
Step 17: 15088 + 943 = 16031
Step 18: 16031 + 943 = 16974
Step 19: 16974 + 943 = 17917
Step 20: 17917 + 943 = 18860
Step 21: 18860 + 943 = 19803
Step 22: 19803 + 943 = 20746
Step 23: 20746 + 943 = 21689
Step 24: 21689 + 943 = 22632
Step 25: 22632 + 943 = 23575
Step 26: 23575 + 943 = 24518
Step 27: 24518 + 943 = 25461
Step 28: 25461 + 943 = 26404
Step 29: 26404 + 943 = 27347
Step 30: 27347 + 943 = 28290
Step 31: 28290 + 943 = 29233
Step 32: 29233 + 943 = 30176
Step 33: 30176 + 943 = 31119
Step 34: 31119 + 943 = 32062
Step 35: 32062 + 943 = 33005
Step 36: 33005 + 943 = 33948
Step 37: 33948 + 943 = 34891
Step 38: 34891 + 943 = 35834
Step 39: 35834 + 943 = 36777
Step 40: 36777 + 943 = 37720
Step 41: 37720 + 943 = 38663
Step 42: 38663 + 943 = 39606
Step 43: 39606 + 943 = 40549
Step 44: 40549 + 943 = 41492
Step 45: 41492 + 943 = 42435
Step 46: 42435 + 943 = 43378
Step 47: 43378 + 943 = 44321
Step 48: 44321 + 943 = 45264
Step 49: 45264 + 943 = 46207
Step 50: 46207 + 943 = 47150
Step 51: 47150 + 943 = 48093
Step 52: 48093 + 943 = 49036
Step 53: 49036 + 943 = 49979
Step 54: 49979 + 943 = 50922
Step 55: 50922 + 943 = 51865
Step 56: 51865 + 943 = 52808
Step 57: 52808 + 943 = 53751
Step 58: 53751 + 943 = 54694
Step 59: 54694 + 943 = 55637
Step 60: 55637 + 943 = 56580
Step 61: 56580 + 943 = 57523
Step 62: 57523 + 943 = 58466
Step 63: 58466 + 943 = 59409
Step 64: 59409 + 943 = 60352
Step 65: 60352 + 943 = 61295
Step 66: 61295 + 943 = 62238
Step 67: 62238 + 943 = 63181
Step 68: 63181 + 943 = 64124
Step 69: 64124 + 943 = 65067
Step 70: 65067 + 943 = 66010
Step 71: 66010 + 943 = 66953
Step 72: 66953 + 943 = 67896
Step 73: 67896 + 943 = 68839
Step 74: 68839 + 943 = 69782
Step 75: 69782 + 943 = 70725
Step 76: 70725 + 943 = 71668
Step 77: 71668 + 943 = 72611
Step 78: 72611 + 943 = 73554
Step 79: 73554 + 943 = 74497
Step 80: 74497 + 943 = 75440
Step 81: 75440 + 943 = 76383
Step 82: 76383 + 943 = 77326
Step 83: 77326 + 943 = 78269
Step 84: 78269 + 943 = 79212
Step 85: 79212 + 943 = 80155
Step 86: 80155 + 943 = 81098
Step 87: 81098 + 943 = 82041
Step 88: 82041 + 943 = 82984
Step 89: 82984 + 943 = 83927
Step 90: 83927 + 943 = 84870
Step 91: 84870 + 943 = 85813

So, 943*91 = 85813