Let's get this math done. We have 189 and we're going to multiply it by 128. This is the same as taking 189 and adding it to itself 128 times.
Step 1: 0 + 189 = 189
Step 2: 189 + 189 = 378
Step 3: 378 + 189 = 567
Step 4: 567 + 189 = 756
Step 5: 756 + 189 = 945
Step 6: 945 + 189 = 1134
Step 7: 1134 + 189 = 1323
Step 8: 1323 + 189 = 1512
Step 9: 1512 + 189 = 1701
Step 10: 1701 + 189 = 1890
Step 11: 1890 + 189 = 2079
Step 12: 2079 + 189 = 2268
Step 13: 2268 + 189 = 2457
Step 14: 2457 + 189 = 2646
Step 15: 2646 + 189 = 2835
Step 16: 2835 + 189 = 3024
Step 17: 3024 + 189 = 3213
Step 18: 3213 + 189 = 3402
Step 19: 3402 + 189 = 3591
Step 20: 3591 + 189 = 3780
Step 21: 3780 + 189 = 3969
Step 22: 3969 + 189 = 4158
Step 23: 4158 + 189 = 4347
Step 24: 4347 + 189 = 4536
Step 25: 4536 + 189 = 4725
Step 26: 4725 + 189 = 4914
Step 27: 4914 + 189 = 5103
Step 28: 5103 + 189 = 5292
Step 29: 5292 + 189 = 5481
Step 30: 5481 + 189 = 5670
Step 31: 5670 + 189 = 5859
Step 32: 5859 + 189 = 6048
Step 33: 6048 + 189 = 6237
Step 34: 6237 + 189 = 6426
Step 35: 6426 + 189 = 6615
Step 36: 6615 + 189 = 6804
Step 37: 6804 + 189 = 6993
Step 38: 6993 + 189 = 7182
Step 39: 7182 + 189 = 7371
Step 40: 7371 + 189 = 7560
Step 41: 7560 + 189 = 7749
Step 42: 7749 + 189 = 7938
Step 43: 7938 + 189 = 8127
Step 44: 8127 + 189 = 8316
Step 45: 8316 + 189 = 8505
Step 46: 8505 + 189 = 8694
Step 47: 8694 + 189 = 8883
Step 48: 8883 + 189 = 9072
Step 49: 9072 + 189 = 9261
Step 50: 9261 + 189 = 9450
Step 51: 9450 + 189 = 9639
Step 52: 9639 + 189 = 9828
Step 53: 9828 + 189 = 10017
Step 54: 10017 + 189 = 10206
Step 55: 10206 + 189 = 10395
Step 56: 10395 + 189 = 10584
Step 57: 10584 + 189 = 10773
Step 58: 10773 + 189 = 10962
Step 59: 10962 + 189 = 11151
Step 60: 11151 + 189 = 11340
Step 61: 11340 + 189 = 11529
Step 62: 11529 + 189 = 11718
Step 63: 11718 + 189 = 11907
Step 64: 11907 + 189 = 12096
Step 65: 12096 + 189 = 12285
Step 66: 12285 + 189 = 12474
Step 67: 12474 + 189 = 12663
Step 68: 12663 + 189 = 12852
Step 69: 12852 + 189 = 13041
Step 70: 13041 + 189 = 13230
Step 71: 13230 + 189 = 13419
Step 72: 13419 + 189 = 13608
Step 73: 13608 + 189 = 13797
Step 74: 13797 + 189 = 13986
Step 75: 13986 + 189 = 14175
Step 76: 14175 + 189 = 14364
Step 77: 14364 + 189 = 14553
Step 78: 14553 + 189 = 14742
Step 79: 14742 + 189 = 14931
Step 80: 14931 + 189 = 15120
Step 81: 15120 + 189 = 15309
Step 82: 15309 + 189 = 15498
Step 83: 15498 + 189 = 15687
Step 84: 15687 + 189 = 15876
Step 85: 15876 + 189 = 16065
Step 86: 16065 + 189 = 16254
Step 87: 16254 + 189 = 16443
Step 88: 16443 + 189 = 16632
Step 89: 16632 + 189 = 16821
Step 90: 16821 + 189 = 17010
Step 91: 17010 + 189 = 17199
Step 92: 17199 + 189 = 17388
Step 93: 17388 + 189 = 17577
Step 94: 17577 + 189 = 17766
Step 95: 17766 + 189 = 17955
Step 96: 17955 + 189 = 18144
Step 97: 18144 + 189 = 18333
Step 98: 18333 + 189 = 18522
Step 99: 18522 + 189 = 18711
Step 100: 18711 + 189 = 18900
Step 101: 18900 + 189 = 19089
Step 102: 19089 + 189 = 19278
Step 103: 19278 + 189 = 19467
Step 104: 19467 + 189 = 19656
Step 105: 19656 + 189 = 19845
Step 106: 19845 + 189 = 20034
Step 107: 20034 + 189 = 20223
Step 108: 20223 + 189 = 20412
Step 109: 20412 + 189 = 20601
Step 110: 20601 + 189 = 20790
Step 111: 20790 + 189 = 20979
Step 112: 20979 + 189 = 21168
Step 113: 21168 + 189 = 21357
Step 114: 21357 + 189 = 21546
Step 115: 21546 + 189 = 21735
Step 116: 21735 + 189 = 21924
Step 117: 21924 + 189 = 22113
Step 118: 22113 + 189 = 22302
Step 119: 22302 + 189 = 22491
Step 120: 22491 + 189 = 22680
Step 121: 22680 + 189 = 22869
Step 122: 22869 + 189 = 23058
Step 123: 23058 + 189 = 23247
Step 124: 23247 + 189 = 23436
Step 125: 23436 + 189 = 23625
Step 126: 23625 + 189 = 23814
Step 127: 23814 + 189 = 24003
Step 128: 24003 + 189 = 24192

So, 189*128 = 24192