Let's roll up our sleeves and solve this. We have 739 and we're going to multiply it by 77, essentially adding 739 to itself 77 times.
Step 1: 0 + 739 = 739
Step 2: 739 + 739 = 1478
Step 3: 1478 + 739 = 2217
Step 4: 2217 + 739 = 2956
Step 5: 2956 + 739 = 3695
Step 6: 3695 + 739 = 4434
Step 7: 4434 + 739 = 5173
Step 8: 5173 + 739 = 5912
Step 9: 5912 + 739 = 6651
Step 10: 6651 + 739 = 7390
Step 11: 7390 + 739 = 8129
Step 12: 8129 + 739 = 8868
Step 13: 8868 + 739 = 9607
Step 14: 9607 + 739 = 10346
Step 15: 10346 + 739 = 11085
Step 16: 11085 + 739 = 11824
Step 17: 11824 + 739 = 12563
Step 18: 12563 + 739 = 13302
Step 19: 13302 + 739 = 14041
Step 20: 14041 + 739 = 14780
Step 21: 14780 + 739 = 15519
Step 22: 15519 + 739 = 16258
Step 23: 16258 + 739 = 16997
Step 24: 16997 + 739 = 17736
Step 25: 17736 + 739 = 18475
Step 26: 18475 + 739 = 19214
Step 27: 19214 + 739 = 19953
Step 28: 19953 + 739 = 20692
Step 29: 20692 + 739 = 21431
Step 30: 21431 + 739 = 22170
Step 31: 22170 + 739 = 22909
Step 32: 22909 + 739 = 23648
Step 33: 23648 + 739 = 24387
Step 34: 24387 + 739 = 25126
Step 35: 25126 + 739 = 25865
Step 36: 25865 + 739 = 26604
Step 37: 26604 + 739 = 27343
Step 38: 27343 + 739 = 28082
Step 39: 28082 + 739 = 28821
Step 40: 28821 + 739 = 29560
Step 41: 29560 + 739 = 30299
Step 42: 30299 + 739 = 31038
Step 43: 31038 + 739 = 31777
Step 44: 31777 + 739 = 32516
Step 45: 32516 + 739 = 33255
Step 46: 33255 + 739 = 33994
Step 47: 33994 + 739 = 34733
Step 48: 34733 + 739 = 35472
Step 49: 35472 + 739 = 36211
Step 50: 36211 + 739 = 36950
Step 51: 36950 + 739 = 37689
Step 52: 37689 + 739 = 38428
Step 53: 38428 + 739 = 39167
Step 54: 39167 + 739 = 39906
Step 55: 39906 + 739 = 40645
Step 56: 40645 + 739 = 41384
Step 57: 41384 + 739 = 42123
Step 58: 42123 + 739 = 42862
Step 59: 42862 + 739 = 43601
Step 60: 43601 + 739 = 44340
Step 61: 44340 + 739 = 45079
Step 62: 45079 + 739 = 45818
Step 63: 45818 + 739 = 46557
Step 64: 46557 + 739 = 47296
Step 65: 47296 + 739 = 48035
Step 66: 48035 + 739 = 48774
Step 67: 48774 + 739 = 49513
Step 68: 49513 + 739 = 50252
Step 69: 50252 + 739 = 50991
Step 70: 50991 + 739 = 51730
Step 71: 51730 + 739 = 52469
Step 72: 52469 + 739 = 53208
Step 73: 53208 + 739 = 53947
Step 74: 53947 + 739 = 54686
Step 75: 54686 + 739 = 55425
Step 76: 55425 + 739 = 56164
Step 77: 56164 + 739 = 56903

So, 739*77 = 56903