Let's roll up our sleeves and solve this. We have 89 and we're going to multiply it by 164, essentially adding 89 to itself 164 times.
Step 1: 0 + 89 = 89
Step 2: 89 + 89 = 178
Step 3: 178 + 89 = 267
Step 4: 267 + 89 = 356
Step 5: 356 + 89 = 445
Step 6: 445 + 89 = 534
Step 7: 534 + 89 = 623
Step 8: 623 + 89 = 712
Step 9: 712 + 89 = 801
Step 10: 801 + 89 = 890
Step 11: 890 + 89 = 979
Step 12: 979 + 89 = 1068
Step 13: 1068 + 89 = 1157
Step 14: 1157 + 89 = 1246
Step 15: 1246 + 89 = 1335
Step 16: 1335 + 89 = 1424
Step 17: 1424 + 89 = 1513
Step 18: 1513 + 89 = 1602
Step 19: 1602 + 89 = 1691
Step 20: 1691 + 89 = 1780
Step 21: 1780 + 89 = 1869
Step 22: 1869 + 89 = 1958
Step 23: 1958 + 89 = 2047
Step 24: 2047 + 89 = 2136
Step 25: 2136 + 89 = 2225
Step 26: 2225 + 89 = 2314
Step 27: 2314 + 89 = 2403
Step 28: 2403 + 89 = 2492
Step 29: 2492 + 89 = 2581
Step 30: 2581 + 89 = 2670
Step 31: 2670 + 89 = 2759
Step 32: 2759 + 89 = 2848
Step 33: 2848 + 89 = 2937
Step 34: 2937 + 89 = 3026
Step 35: 3026 + 89 = 3115
Step 36: 3115 + 89 = 3204
Step 37: 3204 + 89 = 3293
Step 38: 3293 + 89 = 3382
Step 39: 3382 + 89 = 3471
Step 40: 3471 + 89 = 3560
Step 41: 3560 + 89 = 3649
Step 42: 3649 + 89 = 3738
Step 43: 3738 + 89 = 3827
Step 44: 3827 + 89 = 3916
Step 45: 3916 + 89 = 4005
Step 46: 4005 + 89 = 4094
Step 47: 4094 + 89 = 4183
Step 48: 4183 + 89 = 4272
Step 49: 4272 + 89 = 4361
Step 50: 4361 + 89 = 4450
Step 51: 4450 + 89 = 4539
Step 52: 4539 + 89 = 4628
Step 53: 4628 + 89 = 4717
Step 54: 4717 + 89 = 4806
Step 55: 4806 + 89 = 4895
Step 56: 4895 + 89 = 4984
Step 57: 4984 + 89 = 5073
Step 58: 5073 + 89 = 5162
Step 59: 5162 + 89 = 5251
Step 60: 5251 + 89 = 5340
Step 61: 5340 + 89 = 5429
Step 62: 5429 + 89 = 5518
Step 63: 5518 + 89 = 5607
Step 64: 5607 + 89 = 5696
Step 65: 5696 + 89 = 5785
Step 66: 5785 + 89 = 5874
Step 67: 5874 + 89 = 5963
Step 68: 5963 + 89 = 6052
Step 69: 6052 + 89 = 6141
Step 70: 6141 + 89 = 6230
Step 71: 6230 + 89 = 6319
Step 72: 6319 + 89 = 6408
Step 73: 6408 + 89 = 6497
Step 74: 6497 + 89 = 6586
Step 75: 6586 + 89 = 6675
Step 76: 6675 + 89 = 6764
Step 77: 6764 + 89 = 6853
Step 78: 6853 + 89 = 6942
Step 79: 6942 + 89 = 7031
Step 80: 7031 + 89 = 7120
Step 81: 7120 + 89 = 7209
Step 82: 7209 + 89 = 7298
Step 83: 7298 + 89 = 7387
Step 84: 7387 + 89 = 7476
Step 85: 7476 + 89 = 7565
Step 86: 7565 + 89 = 7654
Step 87: 7654 + 89 = 7743
Step 88: 7743 + 89 = 7832
Step 89: 7832 + 89 = 7921
Step 90: 7921 + 89 = 8010
Step 91: 8010 + 89 = 8099
Step 92: 8099 + 89 = 8188
Step 93: 8188 + 89 = 8277
Step 94: 8277 + 89 = 8366
Step 95: 8366 + 89 = 8455
Step 96: 8455 + 89 = 8544
Step 97: 8544 + 89 = 8633
Step 98: 8633 + 89 = 8722
Step 99: 8722 + 89 = 8811
Step 100: 8811 + 89 = 8900
Step 101: 8900 + 89 = 8989
Step 102: 8989 + 89 = 9078
Step 103: 9078 + 89 = 9167
Step 104: 9167 + 89 = 9256
Step 105: 9256 + 89 = 9345
Step 106: 9345 + 89 = 9434
Step 107: 9434 + 89 = 9523
Step 108: 9523 + 89 = 9612
Step 109: 9612 + 89 = 9701
Step 110: 9701 + 89 = 9790
Step 111: 9790 + 89 = 9879
Step 112: 9879 + 89 = 9968
Step 113: 9968 + 89 = 10057
Step 114: 10057 + 89 = 10146
Step 115: 10146 + 89 = 10235
Step 116: 10235 + 89 = 10324
Step 117: 10324 + 89 = 10413
Step 118: 10413 + 89 = 10502
Step 119: 10502 + 89 = 10591
Step 120: 10591 + 89 = 10680
Step 121: 10680 + 89 = 10769
Step 122: 10769 + 89 = 10858
Step 123: 10858 + 89 = 10947
Step 124: 10947 + 89 = 11036
Step 125: 11036 + 89 = 11125
Step 126: 11125 + 89 = 11214
Step 127: 11214 + 89 = 11303
Step 128: 11303 + 89 = 11392
Step 129: 11392 + 89 = 11481
Step 130: 11481 + 89 = 11570
Step 131: 11570 + 89 = 11659
Step 132: 11659 + 89 = 11748
Step 133: 11748 + 89 = 11837
Step 134: 11837 + 89 = 11926
Step 135: 11926 + 89 = 12015
Step 136: 12015 + 89 = 12104
Step 137: 12104 + 89 = 12193
Step 138: 12193 + 89 = 12282
Step 139: 12282 + 89 = 12371
Step 140: 12371 + 89 = 12460
Step 141: 12460 + 89 = 12549
Step 142: 12549 + 89 = 12638
Step 143: 12638 + 89 = 12727
Step 144: 12727 + 89 = 12816
Step 145: 12816 + 89 = 12905
Step 146: 12905 + 89 = 12994
Step 147: 12994 + 89 = 13083
Step 148: 13083 + 89 = 13172
Step 149: 13172 + 89 = 13261
Step 150: 13261 + 89 = 13350
Step 151: 13350 + 89 = 13439
Step 152: 13439 + 89 = 13528
Step 153: 13528 + 89 = 13617
Step 154: 13617 + 89 = 13706
Step 155: 13706 + 89 = 13795
Step 156: 13795 + 89 = 13884
Step 157: 13884 + 89 = 13973
Step 158: 13973 + 89 = 14062
Step 159: 14062 + 89 = 14151
Step 160: 14151 + 89 = 14240
Step 161: 14240 + 89 = 14329
Step 162: 14329 + 89 = 14418
Step 163: 14418 + 89 = 14507
Step 164: 14507 + 89 = 14596

So, 89*164 = 14596