Let's roll up our sleeves and solve this. We have 942 and we're going to multiply it by 120, essentially adding 942 to itself 120 times.
Step 1: 0 + 942 = 942
Step 2: 942 + 942 = 1884
Step 3: 1884 + 942 = 2826
Step 4: 2826 + 942 = 3768
Step 5: 3768 + 942 = 4710
Step 6: 4710 + 942 = 5652
Step 7: 5652 + 942 = 6594
Step 8: 6594 + 942 = 7536
Step 9: 7536 + 942 = 8478
Step 10: 8478 + 942 = 9420
Step 11: 9420 + 942 = 10362
Step 12: 10362 + 942 = 11304
Step 13: 11304 + 942 = 12246
Step 14: 12246 + 942 = 13188
Step 15: 13188 + 942 = 14130
Step 16: 14130 + 942 = 15072
Step 17: 15072 + 942 = 16014
Step 18: 16014 + 942 = 16956
Step 19: 16956 + 942 = 17898
Step 20: 17898 + 942 = 18840
Step 21: 18840 + 942 = 19782
Step 22: 19782 + 942 = 20724
Step 23: 20724 + 942 = 21666
Step 24: 21666 + 942 = 22608
Step 25: 22608 + 942 = 23550
Step 26: 23550 + 942 = 24492
Step 27: 24492 + 942 = 25434
Step 28: 25434 + 942 = 26376
Step 29: 26376 + 942 = 27318
Step 30: 27318 + 942 = 28260
Step 31: 28260 + 942 = 29202
Step 32: 29202 + 942 = 30144
Step 33: 30144 + 942 = 31086
Step 34: 31086 + 942 = 32028
Step 35: 32028 + 942 = 32970
Step 36: 32970 + 942 = 33912
Step 37: 33912 + 942 = 34854
Step 38: 34854 + 942 = 35796
Step 39: 35796 + 942 = 36738
Step 40: 36738 + 942 = 37680
Step 41: 37680 + 942 = 38622
Step 42: 38622 + 942 = 39564
Step 43: 39564 + 942 = 40506
Step 44: 40506 + 942 = 41448
Step 45: 41448 + 942 = 42390
Step 46: 42390 + 942 = 43332
Step 47: 43332 + 942 = 44274
Step 48: 44274 + 942 = 45216
Step 49: 45216 + 942 = 46158
Step 50: 46158 + 942 = 47100
Step 51: 47100 + 942 = 48042
Step 52: 48042 + 942 = 48984
Step 53: 48984 + 942 = 49926
Step 54: 49926 + 942 = 50868
Step 55: 50868 + 942 = 51810
Step 56: 51810 + 942 = 52752
Step 57: 52752 + 942 = 53694
Step 58: 53694 + 942 = 54636
Step 59: 54636 + 942 = 55578
Step 60: 55578 + 942 = 56520
Step 61: 56520 + 942 = 57462
Step 62: 57462 + 942 = 58404
Step 63: 58404 + 942 = 59346
Step 64: 59346 + 942 = 60288
Step 65: 60288 + 942 = 61230
Step 66: 61230 + 942 = 62172
Step 67: 62172 + 942 = 63114
Step 68: 63114 + 942 = 64056
Step 69: 64056 + 942 = 64998
Step 70: 64998 + 942 = 65940
Step 71: 65940 + 942 = 66882
Step 72: 66882 + 942 = 67824
Step 73: 67824 + 942 = 68766
Step 74: 68766 + 942 = 69708
Step 75: 69708 + 942 = 70650
Step 76: 70650 + 942 = 71592
Step 77: 71592 + 942 = 72534
Step 78: 72534 + 942 = 73476
Step 79: 73476 + 942 = 74418
Step 80: 74418 + 942 = 75360
Step 81: 75360 + 942 = 76302
Step 82: 76302 + 942 = 77244
Step 83: 77244 + 942 = 78186
Step 84: 78186 + 942 = 79128
Step 85: 79128 + 942 = 80070
Step 86: 80070 + 942 = 81012
Step 87: 81012 + 942 = 81954
Step 88: 81954 + 942 = 82896
Step 89: 82896 + 942 = 83838
Step 90: 83838 + 942 = 84780
Step 91: 84780 + 942 = 85722
Step 92: 85722 + 942 = 86664
Step 93: 86664 + 942 = 87606
Step 94: 87606 + 942 = 88548
Step 95: 88548 + 942 = 89490
Step 96: 89490 + 942 = 90432
Step 97: 90432 + 942 = 91374
Step 98: 91374 + 942 = 92316
Step 99: 92316 + 942 = 93258
Step 100: 93258 + 942 = 94200
Step 101: 94200 + 942 = 95142
Step 102: 95142 + 942 = 96084
Step 103: 96084 + 942 = 97026
Step 104: 97026 + 942 = 97968
Step 105: 97968 + 942 = 98910
Step 106: 98910 + 942 = 99852
Step 107: 99852 + 942 = 100794
Step 108: 100794 + 942 = 101736
Step 109: 101736 + 942 = 102678
Step 110: 102678 + 942 = 103620
Step 111: 103620 + 942 = 104562
Step 112: 104562 + 942 = 105504
Step 113: 105504 + 942 = 106446
Step 114: 106446 + 942 = 107388
Step 115: 107388 + 942 = 108330
Step 116: 108330 + 942 = 109272
Step 117: 109272 + 942 = 110214
Step 118: 110214 + 942 = 111156
Step 119: 111156 + 942 = 112098
Step 120: 112098 + 942 = 113040

So, 942*120 = 113040