OK, let's work through this together. We're starting with 938 and we're going to multiply it by 135, which means we add 938 to itself 135 times.
Step 1: 0 + 938 = 938
Step 2: 938 + 938 = 1876
Step 3: 1876 + 938 = 2814
Step 4: 2814 + 938 = 3752
Step 5: 3752 + 938 = 4690
Step 6: 4690 + 938 = 5628
Step 7: 5628 + 938 = 6566
Step 8: 6566 + 938 = 7504
Step 9: 7504 + 938 = 8442
Step 10: 8442 + 938 = 9380
Step 11: 9380 + 938 = 10318
Step 12: 10318 + 938 = 11256
Step 13: 11256 + 938 = 12194
Step 14: 12194 + 938 = 13132
Step 15: 13132 + 938 = 14070
Step 16: 14070 + 938 = 15008
Step 17: 15008 + 938 = 15946
Step 18: 15946 + 938 = 16884
Step 19: 16884 + 938 = 17822
Step 20: 17822 + 938 = 18760
Step 21: 18760 + 938 = 19698
Step 22: 19698 + 938 = 20636
Step 23: 20636 + 938 = 21574
Step 24: 21574 + 938 = 22512
Step 25: 22512 + 938 = 23450
Step 26: 23450 + 938 = 24388
Step 27: 24388 + 938 = 25326
Step 28: 25326 + 938 = 26264
Step 29: 26264 + 938 = 27202
Step 30: 27202 + 938 = 28140
Step 31: 28140 + 938 = 29078
Step 32: 29078 + 938 = 30016
Step 33: 30016 + 938 = 30954
Step 34: 30954 + 938 = 31892
Step 35: 31892 + 938 = 32830
Step 36: 32830 + 938 = 33768
Step 37: 33768 + 938 = 34706
Step 38: 34706 + 938 = 35644
Step 39: 35644 + 938 = 36582
Step 40: 36582 + 938 = 37520
Step 41: 37520 + 938 = 38458
Step 42: 38458 + 938 = 39396
Step 43: 39396 + 938 = 40334
Step 44: 40334 + 938 = 41272
Step 45: 41272 + 938 = 42210
Step 46: 42210 + 938 = 43148
Step 47: 43148 + 938 = 44086
Step 48: 44086 + 938 = 45024
Step 49: 45024 + 938 = 45962
Step 50: 45962 + 938 = 46900
Step 51: 46900 + 938 = 47838
Step 52: 47838 + 938 = 48776
Step 53: 48776 + 938 = 49714
Step 54: 49714 + 938 = 50652
Step 55: 50652 + 938 = 51590
Step 56: 51590 + 938 = 52528
Step 57: 52528 + 938 = 53466
Step 58: 53466 + 938 = 54404
Step 59: 54404 + 938 = 55342
Step 60: 55342 + 938 = 56280
Step 61: 56280 + 938 = 57218
Step 62: 57218 + 938 = 58156
Step 63: 58156 + 938 = 59094
Step 64: 59094 + 938 = 60032
Step 65: 60032 + 938 = 60970
Step 66: 60970 + 938 = 61908
Step 67: 61908 + 938 = 62846
Step 68: 62846 + 938 = 63784
Step 69: 63784 + 938 = 64722
Step 70: 64722 + 938 = 65660
Step 71: 65660 + 938 = 66598
Step 72: 66598 + 938 = 67536
Step 73: 67536 + 938 = 68474
Step 74: 68474 + 938 = 69412
Step 75: 69412 + 938 = 70350
Step 76: 70350 + 938 = 71288
Step 77: 71288 + 938 = 72226
Step 78: 72226 + 938 = 73164
Step 79: 73164 + 938 = 74102
Step 80: 74102 + 938 = 75040
Step 81: 75040 + 938 = 75978
Step 82: 75978 + 938 = 76916
Step 83: 76916 + 938 = 77854
Step 84: 77854 + 938 = 78792
Step 85: 78792 + 938 = 79730
Step 86: 79730 + 938 = 80668
Step 87: 80668 + 938 = 81606
Step 88: 81606 + 938 = 82544
Step 89: 82544 + 938 = 83482
Step 90: 83482 + 938 = 84420
Step 91: 84420 + 938 = 85358
Step 92: 85358 + 938 = 86296
Step 93: 86296 + 938 = 87234
Step 94: 87234 + 938 = 88172
Step 95: 88172 + 938 = 89110
Step 96: 89110 + 938 = 90048
Step 97: 90048 + 938 = 90986
Step 98: 90986 + 938 = 91924
Step 99: 91924 + 938 = 92862
Step 100: 92862 + 938 = 93800
Step 101: 93800 + 938 = 94738
Step 102: 94738 + 938 = 95676
Step 103: 95676 + 938 = 96614
Step 104: 96614 + 938 = 97552
Step 105: 97552 + 938 = 98490
Step 106: 98490 + 938 = 99428
Step 107: 99428 + 938 = 100366
Step 108: 100366 + 938 = 101304
Step 109: 101304 + 938 = 102242
Step 110: 102242 + 938 = 103180
Step 111: 103180 + 938 = 104118
Step 112: 104118 + 938 = 105056
Step 113: 105056 + 938 = 105994
Step 114: 105994 + 938 = 106932
Step 115: 106932 + 938 = 107870
Step 116: 107870 + 938 = 108808
Step 117: 108808 + 938 = 109746
Step 118: 109746 + 938 = 110684
Step 119: 110684 + 938 = 111622
Step 120: 111622 + 938 = 112560
Step 121: 112560 + 938 = 113498
Step 122: 113498 + 938 = 114436
Step 123: 114436 + 938 = 115374
Step 124: 115374 + 938 = 116312
Step 125: 116312 + 938 = 117250
Step 126: 117250 + 938 = 118188
Step 127: 118188 + 938 = 119126
Step 128: 119126 + 938 = 120064
Step 129: 120064 + 938 = 121002
Step 130: 121002 + 938 = 121940
Step 131: 121940 + 938 = 122878
Step 132: 122878 + 938 = 123816
Step 133: 123816 + 938 = 124754
Step 134: 124754 + 938 = 125692
Step 135: 125692 + 938 = 126630

So, 938*135 = 126630