Without delay, let's solve this. We've got 939 and we will be multiplying it by 171, that is, adding 939 to itself 171 times.
Step 1: 0 + 939 = 939
Step 2: 939 + 939 = 1878
Step 3: 1878 + 939 = 2817
Step 4: 2817 + 939 = 3756
Step 5: 3756 + 939 = 4695
Step 6: 4695 + 939 = 5634
Step 7: 5634 + 939 = 6573
Step 8: 6573 + 939 = 7512
Step 9: 7512 + 939 = 8451
Step 10: 8451 + 939 = 9390
Step 11: 9390 + 939 = 10329
Step 12: 10329 + 939 = 11268
Step 13: 11268 + 939 = 12207
Step 14: 12207 + 939 = 13146
Step 15: 13146 + 939 = 14085
Step 16: 14085 + 939 = 15024
Step 17: 15024 + 939 = 15963
Step 18: 15963 + 939 = 16902
Step 19: 16902 + 939 = 17841
Step 20: 17841 + 939 = 18780
Step 21: 18780 + 939 = 19719
Step 22: 19719 + 939 = 20658
Step 23: 20658 + 939 = 21597
Step 24: 21597 + 939 = 22536
Step 25: 22536 + 939 = 23475
Step 26: 23475 + 939 = 24414
Step 27: 24414 + 939 = 25353
Step 28: 25353 + 939 = 26292
Step 29: 26292 + 939 = 27231
Step 30: 27231 + 939 = 28170
Step 31: 28170 + 939 = 29109
Step 32: 29109 + 939 = 30048
Step 33: 30048 + 939 = 30987
Step 34: 30987 + 939 = 31926
Step 35: 31926 + 939 = 32865
Step 36: 32865 + 939 = 33804
Step 37: 33804 + 939 = 34743
Step 38: 34743 + 939 = 35682
Step 39: 35682 + 939 = 36621
Step 40: 36621 + 939 = 37560
Step 41: 37560 + 939 = 38499
Step 42: 38499 + 939 = 39438
Step 43: 39438 + 939 = 40377
Step 44: 40377 + 939 = 41316
Step 45: 41316 + 939 = 42255
Step 46: 42255 + 939 = 43194
Step 47: 43194 + 939 = 44133
Step 48: 44133 + 939 = 45072
Step 49: 45072 + 939 = 46011
Step 50: 46011 + 939 = 46950
Step 51: 46950 + 939 = 47889
Step 52: 47889 + 939 = 48828
Step 53: 48828 + 939 = 49767
Step 54: 49767 + 939 = 50706
Step 55: 50706 + 939 = 51645
Step 56: 51645 + 939 = 52584
Step 57: 52584 + 939 = 53523
Step 58: 53523 + 939 = 54462
Step 59: 54462 + 939 = 55401
Step 60: 55401 + 939 = 56340
Step 61: 56340 + 939 = 57279
Step 62: 57279 + 939 = 58218
Step 63: 58218 + 939 = 59157
Step 64: 59157 + 939 = 60096
Step 65: 60096 + 939 = 61035
Step 66: 61035 + 939 = 61974
Step 67: 61974 + 939 = 62913
Step 68: 62913 + 939 = 63852
Step 69: 63852 + 939 = 64791
Step 70: 64791 + 939 = 65730
Step 71: 65730 + 939 = 66669
Step 72: 66669 + 939 = 67608
Step 73: 67608 + 939 = 68547
Step 74: 68547 + 939 = 69486
Step 75: 69486 + 939 = 70425
Step 76: 70425 + 939 = 71364
Step 77: 71364 + 939 = 72303
Step 78: 72303 + 939 = 73242
Step 79: 73242 + 939 = 74181
Step 80: 74181 + 939 = 75120
Step 81: 75120 + 939 = 76059
Step 82: 76059 + 939 = 76998
Step 83: 76998 + 939 = 77937
Step 84: 77937 + 939 = 78876
Step 85: 78876 + 939 = 79815
Step 86: 79815 + 939 = 80754
Step 87: 80754 + 939 = 81693
Step 88: 81693 + 939 = 82632
Step 89: 82632 + 939 = 83571
Step 90: 83571 + 939 = 84510
Step 91: 84510 + 939 = 85449
Step 92: 85449 + 939 = 86388
Step 93: 86388 + 939 = 87327
Step 94: 87327 + 939 = 88266
Step 95: 88266 + 939 = 89205
Step 96: 89205 + 939 = 90144
Step 97: 90144 + 939 = 91083
Step 98: 91083 + 939 = 92022
Step 99: 92022 + 939 = 92961
Step 100: 92961 + 939 = 93900
Step 101: 93900 + 939 = 94839
Step 102: 94839 + 939 = 95778
Step 103: 95778 + 939 = 96717
Step 104: 96717 + 939 = 97656
Step 105: 97656 + 939 = 98595
Step 106: 98595 + 939 = 99534
Step 107: 99534 + 939 = 100473
Step 108: 100473 + 939 = 101412
Step 109: 101412 + 939 = 102351
Step 110: 102351 + 939 = 103290
Step 111: 103290 + 939 = 104229
Step 112: 104229 + 939 = 105168
Step 113: 105168 + 939 = 106107
Step 114: 106107 + 939 = 107046
Step 115: 107046 + 939 = 107985
Step 116: 107985 + 939 = 108924
Step 117: 108924 + 939 = 109863
Step 118: 109863 + 939 = 110802
Step 119: 110802 + 939 = 111741
Step 120: 111741 + 939 = 112680
Step 121: 112680 + 939 = 113619
Step 122: 113619 + 939 = 114558
Step 123: 114558 + 939 = 115497
Step 124: 115497 + 939 = 116436
Step 125: 116436 + 939 = 117375
Step 126: 117375 + 939 = 118314
Step 127: 118314 + 939 = 119253
Step 128: 119253 + 939 = 120192
Step 129: 120192 + 939 = 121131
Step 130: 121131 + 939 = 122070
Step 131: 122070 + 939 = 123009
Step 132: 123009 + 939 = 123948
Step 133: 123948 + 939 = 124887
Step 134: 124887 + 939 = 125826
Step 135: 125826 + 939 = 126765
Step 136: 126765 + 939 = 127704
Step 137: 127704 + 939 = 128643
Step 138: 128643 + 939 = 129582
Step 139: 129582 + 939 = 130521
Step 140: 130521 + 939 = 131460
Step 141: 131460 + 939 = 132399
Step 142: 132399 + 939 = 133338
Step 143: 133338 + 939 = 134277
Step 144: 134277 + 939 = 135216
Step 145: 135216 + 939 = 136155
Step 146: 136155 + 939 = 137094
Step 147: 137094 + 939 = 138033
Step 148: 138033 + 939 = 138972
Step 149: 138972 + 939 = 139911
Step 150: 139911 + 939 = 140850
Step 151: 140850 + 939 = 141789
Step 152: 141789 + 939 = 142728
Step 153: 142728 + 939 = 143667
Step 154: 143667 + 939 = 144606
Step 155: 144606 + 939 = 145545
Step 156: 145545 + 939 = 146484
Step 157: 146484 + 939 = 147423
Step 158: 147423 + 939 = 148362
Step 159: 148362 + 939 = 149301
Step 160: 149301 + 939 = 150240
Step 161: 150240 + 939 = 151179
Step 162: 151179 + 939 = 152118
Step 163: 152118 + 939 = 153057
Step 164: 153057 + 939 = 153996
Step 165: 153996 + 939 = 154935
Step 166: 154935 + 939 = 155874
Step 167: 155874 + 939 = 156813
Step 168: 156813 + 939 = 157752
Step 169: 157752 + 939 = 158691
Step 170: 158691 + 939 = 159630
Step 171: 159630 + 939 = 160569

So, 939*171 = 160569