Alright, let's solve this math problem step by step. First, we have the number 766. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 138. So, we're going to take the number 766 and add it to itself 138 times.
Step 1: 0 + 766 = 766
Step 2: 766 + 766 = 1532
Step 3: 1532 + 766 = 2298
Step 4: 2298 + 766 = 3064
Step 5: 3064 + 766 = 3830
Step 6: 3830 + 766 = 4596
Step 7: 4596 + 766 = 5362
Step 8: 5362 + 766 = 6128
Step 9: 6128 + 766 = 6894
Step 10: 6894 + 766 = 7660
Step 11: 7660 + 766 = 8426
Step 12: 8426 + 766 = 9192
Step 13: 9192 + 766 = 9958
Step 14: 9958 + 766 = 10724
Step 15: 10724 + 766 = 11490
Step 16: 11490 + 766 = 12256
Step 17: 12256 + 766 = 13022
Step 18: 13022 + 766 = 13788
Step 19: 13788 + 766 = 14554
Step 20: 14554 + 766 = 15320
Step 21: 15320 + 766 = 16086
Step 22: 16086 + 766 = 16852
Step 23: 16852 + 766 = 17618
Step 24: 17618 + 766 = 18384
Step 25: 18384 + 766 = 19150
Step 26: 19150 + 766 = 19916
Step 27: 19916 + 766 = 20682
Step 28: 20682 + 766 = 21448
Step 29: 21448 + 766 = 22214
Step 30: 22214 + 766 = 22980
Step 31: 22980 + 766 = 23746
Step 32: 23746 + 766 = 24512
Step 33: 24512 + 766 = 25278
Step 34: 25278 + 766 = 26044
Step 35: 26044 + 766 = 26810
Step 36: 26810 + 766 = 27576
Step 37: 27576 + 766 = 28342
Step 38: 28342 + 766 = 29108
Step 39: 29108 + 766 = 29874
Step 40: 29874 + 766 = 30640
Step 41: 30640 + 766 = 31406
Step 42: 31406 + 766 = 32172
Step 43: 32172 + 766 = 32938
Step 44: 32938 + 766 = 33704
Step 45: 33704 + 766 = 34470
Step 46: 34470 + 766 = 35236
Step 47: 35236 + 766 = 36002
Step 48: 36002 + 766 = 36768
Step 49: 36768 + 766 = 37534
Step 50: 37534 + 766 = 38300
Step 51: 38300 + 766 = 39066
Step 52: 39066 + 766 = 39832
Step 53: 39832 + 766 = 40598
Step 54: 40598 + 766 = 41364
Step 55: 41364 + 766 = 42130
Step 56: 42130 + 766 = 42896
Step 57: 42896 + 766 = 43662
Step 58: 43662 + 766 = 44428
Step 59: 44428 + 766 = 45194
Step 60: 45194 + 766 = 45960
Step 61: 45960 + 766 = 46726
Step 62: 46726 + 766 = 47492
Step 63: 47492 + 766 = 48258
Step 64: 48258 + 766 = 49024
Step 65: 49024 + 766 = 49790
Step 66: 49790 + 766 = 50556
Step 67: 50556 + 766 = 51322
Step 68: 51322 + 766 = 52088
Step 69: 52088 + 766 = 52854
Step 70: 52854 + 766 = 53620
Step 71: 53620 + 766 = 54386
Step 72: 54386 + 766 = 55152
Step 73: 55152 + 766 = 55918
Step 74: 55918 + 766 = 56684
Step 75: 56684 + 766 = 57450
Step 76: 57450 + 766 = 58216
Step 77: 58216 + 766 = 58982
Step 78: 58982 + 766 = 59748
Step 79: 59748 + 766 = 60514
Step 80: 60514 + 766 = 61280
Step 81: 61280 + 766 = 62046
Step 82: 62046 + 766 = 62812
Step 83: 62812 + 766 = 63578
Step 84: 63578 + 766 = 64344
Step 85: 64344 + 766 = 65110
Step 86: 65110 + 766 = 65876
Step 87: 65876 + 766 = 66642
Step 88: 66642 + 766 = 67408
Step 89: 67408 + 766 = 68174
Step 90: 68174 + 766 = 68940
Step 91: 68940 + 766 = 69706
Step 92: 69706 + 766 = 70472
Step 93: 70472 + 766 = 71238
Step 94: 71238 + 766 = 72004
Step 95: 72004 + 766 = 72770
Step 96: 72770 + 766 = 73536
Step 97: 73536 + 766 = 74302
Step 98: 74302 + 766 = 75068
Step 99: 75068 + 766 = 75834
Step 100: 75834 + 766 = 76600
Step 101: 76600 + 766 = 77366
Step 102: 77366 + 766 = 78132
Step 103: 78132 + 766 = 78898
Step 104: 78898 + 766 = 79664
Step 105: 79664 + 766 = 80430
Step 106: 80430 + 766 = 81196
Step 107: 81196 + 766 = 81962
Step 108: 81962 + 766 = 82728
Step 109: 82728 + 766 = 83494
Step 110: 83494 + 766 = 84260
Step 111: 84260 + 766 = 85026
Step 112: 85026 + 766 = 85792
Step 113: 85792 + 766 = 86558
Step 114: 86558 + 766 = 87324
Step 115: 87324 + 766 = 88090
Step 116: 88090 + 766 = 88856
Step 117: 88856 + 766 = 89622
Step 118: 89622 + 766 = 90388
Step 119: 90388 + 766 = 91154
Step 120: 91154 + 766 = 91920
Step 121: 91920 + 766 = 92686
Step 122: 92686 + 766 = 93452
Step 123: 93452 + 766 = 94218
Step 124: 94218 + 766 = 94984
Step 125: 94984 + 766 = 95750
Step 126: 95750 + 766 = 96516
Step 127: 96516 + 766 = 97282
Step 128: 97282 + 766 = 98048
Step 129: 98048 + 766 = 98814
Step 130: 98814 + 766 = 99580
Step 131: 99580 + 766 = 100346
Step 132: 100346 + 766 = 101112
Step 133: 101112 + 766 = 101878
Step 134: 101878 + 766 = 102644
Step 135: 102644 + 766 = 103410
Step 136: 103410 + 766 = 104176
Step 137: 104176 + 766 = 104942
Step 138: 104942 + 766 = 105708

So, 766*138 = 105708