Alright, let's solve this math problem step by step. First, we have the number 721. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 108. So, we're going to take the number 721 and add it to itself 108 times.
Step 1: 0 + 721 = 721
Step 2: 721 + 721 = 1442
Step 3: 1442 + 721 = 2163
Step 4: 2163 + 721 = 2884
Step 5: 2884 + 721 = 3605
Step 6: 3605 + 721 = 4326
Step 7: 4326 + 721 = 5047
Step 8: 5047 + 721 = 5768
Step 9: 5768 + 721 = 6489
Step 10: 6489 + 721 = 7210
Step 11: 7210 + 721 = 7931
Step 12: 7931 + 721 = 8652
Step 13: 8652 + 721 = 9373
Step 14: 9373 + 721 = 10094
Step 15: 10094 + 721 = 10815
Step 16: 10815 + 721 = 11536
Step 17: 11536 + 721 = 12257
Step 18: 12257 + 721 = 12978
Step 19: 12978 + 721 = 13699
Step 20: 13699 + 721 = 14420
Step 21: 14420 + 721 = 15141
Step 22: 15141 + 721 = 15862
Step 23: 15862 + 721 = 16583
Step 24: 16583 + 721 = 17304
Step 25: 17304 + 721 = 18025
Step 26: 18025 + 721 = 18746
Step 27: 18746 + 721 = 19467
Step 28: 19467 + 721 = 20188
Step 29: 20188 + 721 = 20909
Step 30: 20909 + 721 = 21630
Step 31: 21630 + 721 = 22351
Step 32: 22351 + 721 = 23072
Step 33: 23072 + 721 = 23793
Step 34: 23793 + 721 = 24514
Step 35: 24514 + 721 = 25235
Step 36: 25235 + 721 = 25956
Step 37: 25956 + 721 = 26677
Step 38: 26677 + 721 = 27398
Step 39: 27398 + 721 = 28119
Step 40: 28119 + 721 = 28840
Step 41: 28840 + 721 = 29561
Step 42: 29561 + 721 = 30282
Step 43: 30282 + 721 = 31003
Step 44: 31003 + 721 = 31724
Step 45: 31724 + 721 = 32445
Step 46: 32445 + 721 = 33166
Step 47: 33166 + 721 = 33887
Step 48: 33887 + 721 = 34608
Step 49: 34608 + 721 = 35329
Step 50: 35329 + 721 = 36050
Step 51: 36050 + 721 = 36771
Step 52: 36771 + 721 = 37492
Step 53: 37492 + 721 = 38213
Step 54: 38213 + 721 = 38934
Step 55: 38934 + 721 = 39655
Step 56: 39655 + 721 = 40376
Step 57: 40376 + 721 = 41097
Step 58: 41097 + 721 = 41818
Step 59: 41818 + 721 = 42539
Step 60: 42539 + 721 = 43260
Step 61: 43260 + 721 = 43981
Step 62: 43981 + 721 = 44702
Step 63: 44702 + 721 = 45423
Step 64: 45423 + 721 = 46144
Step 65: 46144 + 721 = 46865
Step 66: 46865 + 721 = 47586
Step 67: 47586 + 721 = 48307
Step 68: 48307 + 721 = 49028
Step 69: 49028 + 721 = 49749
Step 70: 49749 + 721 = 50470
Step 71: 50470 + 721 = 51191
Step 72: 51191 + 721 = 51912
Step 73: 51912 + 721 = 52633
Step 74: 52633 + 721 = 53354
Step 75: 53354 + 721 = 54075
Step 76: 54075 + 721 = 54796
Step 77: 54796 + 721 = 55517
Step 78: 55517 + 721 = 56238
Step 79: 56238 + 721 = 56959
Step 80: 56959 + 721 = 57680
Step 81: 57680 + 721 = 58401
Step 82: 58401 + 721 = 59122
Step 83: 59122 + 721 = 59843
Step 84: 59843 + 721 = 60564
Step 85: 60564 + 721 = 61285
Step 86: 61285 + 721 = 62006
Step 87: 62006 + 721 = 62727
Step 88: 62727 + 721 = 63448
Step 89: 63448 + 721 = 64169
Step 90: 64169 + 721 = 64890
Step 91: 64890 + 721 = 65611
Step 92: 65611 + 721 = 66332
Step 93: 66332 + 721 = 67053
Step 94: 67053 + 721 = 67774
Step 95: 67774 + 721 = 68495
Step 96: 68495 + 721 = 69216
Step 97: 69216 + 721 = 69937
Step 98: 69937 + 721 = 70658
Step 99: 70658 + 721 = 71379
Step 100: 71379 + 721 = 72100
Step 101: 72100 + 721 = 72821
Step 102: 72821 + 721 = 73542
Step 103: 73542 + 721 = 74263
Step 104: 74263 + 721 = 74984
Step 105: 74984 + 721 = 75705
Step 106: 75705 + 721 = 76426
Step 107: 76426 + 721 = 77147
Step 108: 77147 + 721 = 77868

So, 721*108 = 77868