Without delay, let's solve this. We've got 915 and we will be multiplying it by 54, that is, adding 915 to itself 54 times.
Step 1: 0 + 915 = 915
Step 2: 915 + 915 = 1830
Step 3: 1830 + 915 = 2745
Step 4: 2745 + 915 = 3660
Step 5: 3660 + 915 = 4575
Step 6: 4575 + 915 = 5490
Step 7: 5490 + 915 = 6405
Step 8: 6405 + 915 = 7320
Step 9: 7320 + 915 = 8235
Step 10: 8235 + 915 = 9150
Step 11: 9150 + 915 = 10065
Step 12: 10065 + 915 = 10980
Step 13: 10980 + 915 = 11895
Step 14: 11895 + 915 = 12810
Step 15: 12810 + 915 = 13725
Step 16: 13725 + 915 = 14640
Step 17: 14640 + 915 = 15555
Step 18: 15555 + 915 = 16470
Step 19: 16470 + 915 = 17385
Step 20: 17385 + 915 = 18300
Step 21: 18300 + 915 = 19215
Step 22: 19215 + 915 = 20130
Step 23: 20130 + 915 = 21045
Step 24: 21045 + 915 = 21960
Step 25: 21960 + 915 = 22875
Step 26: 22875 + 915 = 23790
Step 27: 23790 + 915 = 24705
Step 28: 24705 + 915 = 25620
Step 29: 25620 + 915 = 26535
Step 30: 26535 + 915 = 27450
Step 31: 27450 + 915 = 28365
Step 32: 28365 + 915 = 29280
Step 33: 29280 + 915 = 30195
Step 34: 30195 + 915 = 31110
Step 35: 31110 + 915 = 32025
Step 36: 32025 + 915 = 32940
Step 37: 32940 + 915 = 33855
Step 38: 33855 + 915 = 34770
Step 39: 34770 + 915 = 35685
Step 40: 35685 + 915 = 36600
Step 41: 36600 + 915 = 37515
Step 42: 37515 + 915 = 38430
Step 43: 38430 + 915 = 39345
Step 44: 39345 + 915 = 40260
Step 45: 40260 + 915 = 41175
Step 46: 41175 + 915 = 42090
Step 47: 42090 + 915 = 43005
Step 48: 43005 + 915 = 43920
Step 49: 43920 + 915 = 44835
Step 50: 44835 + 915 = 45750
Step 51: 45750 + 915 = 46665
Step 52: 46665 + 915 = 47580
Step 53: 47580 + 915 = 48495
Step 54: 48495 + 915 = 49410

So, 915*54 = 49410