Alright, let's solve this math problem step by step. First, we have the number 939. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 109. So, we're going to take the number 939 and add it to itself 109 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

So, 939*109 = 102351