Let's roll up our sleeves and solve this. We have 886 and we're going to multiply it by 75, essentially adding 886 to itself 75 times.
Step 1: 0 + 886 = 886
Step 2: 886 + 886 = 1772
Step 3: 1772 + 886 = 2658
Step 4: 2658 + 886 = 3544
Step 5: 3544 + 886 = 4430
Step 6: 4430 + 886 = 5316
Step 7: 5316 + 886 = 6202
Step 8: 6202 + 886 = 7088
Step 9: 7088 + 886 = 7974
Step 10: 7974 + 886 = 8860
Step 11: 8860 + 886 = 9746
Step 12: 9746 + 886 = 10632
Step 13: 10632 + 886 = 11518
Step 14: 11518 + 886 = 12404
Step 15: 12404 + 886 = 13290
Step 16: 13290 + 886 = 14176
Step 17: 14176 + 886 = 15062
Step 18: 15062 + 886 = 15948
Step 19: 15948 + 886 = 16834
Step 20: 16834 + 886 = 17720
Step 21: 17720 + 886 = 18606
Step 22: 18606 + 886 = 19492
Step 23: 19492 + 886 = 20378
Step 24: 20378 + 886 = 21264
Step 25: 21264 + 886 = 22150
Step 26: 22150 + 886 = 23036
Step 27: 23036 + 886 = 23922
Step 28: 23922 + 886 = 24808
Step 29: 24808 + 886 = 25694
Step 30: 25694 + 886 = 26580
Step 31: 26580 + 886 = 27466
Step 32: 27466 + 886 = 28352
Step 33: 28352 + 886 = 29238
Step 34: 29238 + 886 = 30124
Step 35: 30124 + 886 = 31010
Step 36: 31010 + 886 = 31896
Step 37: 31896 + 886 = 32782
Step 38: 32782 + 886 = 33668
Step 39: 33668 + 886 = 34554
Step 40: 34554 + 886 = 35440
Step 41: 35440 + 886 = 36326
Step 42: 36326 + 886 = 37212
Step 43: 37212 + 886 = 38098
Step 44: 38098 + 886 = 38984
Step 45: 38984 + 886 = 39870
Step 46: 39870 + 886 = 40756
Step 47: 40756 + 886 = 41642
Step 48: 41642 + 886 = 42528
Step 49: 42528 + 886 = 43414
Step 50: 43414 + 886 = 44300
Step 51: 44300 + 886 = 45186
Step 52: 45186 + 886 = 46072
Step 53: 46072 + 886 = 46958
Step 54: 46958 + 886 = 47844
Step 55: 47844 + 886 = 48730
Step 56: 48730 + 886 = 49616
Step 57: 49616 + 886 = 50502
Step 58: 50502 + 886 = 51388
Step 59: 51388 + 886 = 52274
Step 60: 52274 + 886 = 53160
Step 61: 53160 + 886 = 54046
Step 62: 54046 + 886 = 54932
Step 63: 54932 + 886 = 55818
Step 64: 55818 + 886 = 56704
Step 65: 56704 + 886 = 57590
Step 66: 57590 + 886 = 58476
Step 67: 58476 + 886 = 59362
Step 68: 59362 + 886 = 60248
Step 69: 60248 + 886 = 61134
Step 70: 61134 + 886 = 62020
Step 71: 62020 + 886 = 62906
Step 72: 62906 + 886 = 63792
Step 73: 63792 + 886 = 64678
Step 74: 64678 + 886 = 65564
Step 75: 65564 + 886 = 66450

So, 886*75 = 66450