Without delay, let's solve this. We've got 538 and we will be multiplying it by 135, that is, adding 538 to itself 135 times.
Step 1: 0 + 538 = 538
Step 2: 538 + 538 = 1076
Step 3: 1076 + 538 = 1614
Step 4: 1614 + 538 = 2152
Step 5: 2152 + 538 = 2690
Step 6: 2690 + 538 = 3228
Step 7: 3228 + 538 = 3766
Step 8: 3766 + 538 = 4304
Step 9: 4304 + 538 = 4842
Step 10: 4842 + 538 = 5380
Step 11: 5380 + 538 = 5918
Step 12: 5918 + 538 = 6456
Step 13: 6456 + 538 = 6994
Step 14: 6994 + 538 = 7532
Step 15: 7532 + 538 = 8070
Step 16: 8070 + 538 = 8608
Step 17: 8608 + 538 = 9146
Step 18: 9146 + 538 = 9684
Step 19: 9684 + 538 = 10222
Step 20: 10222 + 538 = 10760
Step 21: 10760 + 538 = 11298
Step 22: 11298 + 538 = 11836
Step 23: 11836 + 538 = 12374
Step 24: 12374 + 538 = 12912
Step 25: 12912 + 538 = 13450
Step 26: 13450 + 538 = 13988
Step 27: 13988 + 538 = 14526
Step 28: 14526 + 538 = 15064
Step 29: 15064 + 538 = 15602
Step 30: 15602 + 538 = 16140
Step 31: 16140 + 538 = 16678
Step 32: 16678 + 538 = 17216
Step 33: 17216 + 538 = 17754
Step 34: 17754 + 538 = 18292
Step 35: 18292 + 538 = 18830
Step 36: 18830 + 538 = 19368
Step 37: 19368 + 538 = 19906
Step 38: 19906 + 538 = 20444
Step 39: 20444 + 538 = 20982
Step 40: 20982 + 538 = 21520
Step 41: 21520 + 538 = 22058
Step 42: 22058 + 538 = 22596
Step 43: 22596 + 538 = 23134
Step 44: 23134 + 538 = 23672
Step 45: 23672 + 538 = 24210
Step 46: 24210 + 538 = 24748
Step 47: 24748 + 538 = 25286
Step 48: 25286 + 538 = 25824
Step 49: 25824 + 538 = 26362
Step 50: 26362 + 538 = 26900
Step 51: 26900 + 538 = 27438
Step 52: 27438 + 538 = 27976
Step 53: 27976 + 538 = 28514
Step 54: 28514 + 538 = 29052
Step 55: 29052 + 538 = 29590
Step 56: 29590 + 538 = 30128
Step 57: 30128 + 538 = 30666
Step 58: 30666 + 538 = 31204
Step 59: 31204 + 538 = 31742
Step 60: 31742 + 538 = 32280
Step 61: 32280 + 538 = 32818
Step 62: 32818 + 538 = 33356
Step 63: 33356 + 538 = 33894
Step 64: 33894 + 538 = 34432
Step 65: 34432 + 538 = 34970
Step 66: 34970 + 538 = 35508
Step 67: 35508 + 538 = 36046
Step 68: 36046 + 538 = 36584
Step 69: 36584 + 538 = 37122
Step 70: 37122 + 538 = 37660
Step 71: 37660 + 538 = 38198
Step 72: 38198 + 538 = 38736
Step 73: 38736 + 538 = 39274
Step 74: 39274 + 538 = 39812
Step 75: 39812 + 538 = 40350
Step 76: 40350 + 538 = 40888
Step 77: 40888 + 538 = 41426
Step 78: 41426 + 538 = 41964
Step 79: 41964 + 538 = 42502
Step 80: 42502 + 538 = 43040
Step 81: 43040 + 538 = 43578
Step 82: 43578 + 538 = 44116
Step 83: 44116 + 538 = 44654
Step 84: 44654 + 538 = 45192
Step 85: 45192 + 538 = 45730
Step 86: 45730 + 538 = 46268
Step 87: 46268 + 538 = 46806
Step 88: 46806 + 538 = 47344
Step 89: 47344 + 538 = 47882
Step 90: 47882 + 538 = 48420
Step 91: 48420 + 538 = 48958
Step 92: 48958 + 538 = 49496
Step 93: 49496 + 538 = 50034
Step 94: 50034 + 538 = 50572
Step 95: 50572 + 538 = 51110
Step 96: 51110 + 538 = 51648
Step 97: 51648 + 538 = 52186
Step 98: 52186 + 538 = 52724
Step 99: 52724 + 538 = 53262
Step 100: 53262 + 538 = 53800
Step 101: 53800 + 538 = 54338
Step 102: 54338 + 538 = 54876
Step 103: 54876 + 538 = 55414
Step 104: 55414 + 538 = 55952
Step 105: 55952 + 538 = 56490
Step 106: 56490 + 538 = 57028
Step 107: 57028 + 538 = 57566
Step 108: 57566 + 538 = 58104
Step 109: 58104 + 538 = 58642
Step 110: 58642 + 538 = 59180
Step 111: 59180 + 538 = 59718
Step 112: 59718 + 538 = 60256
Step 113: 60256 + 538 = 60794
Step 114: 60794 + 538 = 61332
Step 115: 61332 + 538 = 61870
Step 116: 61870 + 538 = 62408
Step 117: 62408 + 538 = 62946
Step 118: 62946 + 538 = 63484
Step 119: 63484 + 538 = 64022
Step 120: 64022 + 538 = 64560
Step 121: 64560 + 538 = 65098
Step 122: 65098 + 538 = 65636
Step 123: 65636 + 538 = 66174
Step 124: 66174 + 538 = 66712
Step 125: 66712 + 538 = 67250
Step 126: 67250 + 538 = 67788
Step 127: 67788 + 538 = 68326
Step 128: 68326 + 538 = 68864
Step 129: 68864 + 538 = 69402
Step 130: 69402 + 538 = 69940
Step 131: 69940 + 538 = 70478
Step 132: 70478 + 538 = 71016
Step 133: 71016 + 538 = 71554
Step 134: 71554 + 538 = 72092
Step 135: 72092 + 538 = 72630

So, 538*135 = 72630