Alright, let's solve this math problem step by step. First, we have the number 121. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 78. So, we're going to take the number 121 and add it to itself 78 times.
Step 1: 0 + 121 = 121
Step 2: 121 + 121 = 242
Step 3: 242 + 121 = 363
Step 4: 363 + 121 = 484
Step 5: 484 + 121 = 605
Step 6: 605 + 121 = 726
Step 7: 726 + 121 = 847
Step 8: 847 + 121 = 968
Step 9: 968 + 121 = 1089
Step 10: 1089 + 121 = 1210
Step 11: 1210 + 121 = 1331
Step 12: 1331 + 121 = 1452
Step 13: 1452 + 121 = 1573
Step 14: 1573 + 121 = 1694
Step 15: 1694 + 121 = 1815
Step 16: 1815 + 121 = 1936
Step 17: 1936 + 121 = 2057
Step 18: 2057 + 121 = 2178
Step 19: 2178 + 121 = 2299
Step 20: 2299 + 121 = 2420
Step 21: 2420 + 121 = 2541
Step 22: 2541 + 121 = 2662
Step 23: 2662 + 121 = 2783
Step 24: 2783 + 121 = 2904
Step 25: 2904 + 121 = 3025
Step 26: 3025 + 121 = 3146
Step 27: 3146 + 121 = 3267
Step 28: 3267 + 121 = 3388
Step 29: 3388 + 121 = 3509
Step 30: 3509 + 121 = 3630
Step 31: 3630 + 121 = 3751
Step 32: 3751 + 121 = 3872
Step 33: 3872 + 121 = 3993
Step 34: 3993 + 121 = 4114
Step 35: 4114 + 121 = 4235
Step 36: 4235 + 121 = 4356
Step 37: 4356 + 121 = 4477
Step 38: 4477 + 121 = 4598
Step 39: 4598 + 121 = 4719
Step 40: 4719 + 121 = 4840
Step 41: 4840 + 121 = 4961
Step 42: 4961 + 121 = 5082
Step 43: 5082 + 121 = 5203
Step 44: 5203 + 121 = 5324
Step 45: 5324 + 121 = 5445
Step 46: 5445 + 121 = 5566
Step 47: 5566 + 121 = 5687
Step 48: 5687 + 121 = 5808
Step 49: 5808 + 121 = 5929
Step 50: 5929 + 121 = 6050
Step 51: 6050 + 121 = 6171
Step 52: 6171 + 121 = 6292
Step 53: 6292 + 121 = 6413
Step 54: 6413 + 121 = 6534
Step 55: 6534 + 121 = 6655
Step 56: 6655 + 121 = 6776
Step 57: 6776 + 121 = 6897
Step 58: 6897 + 121 = 7018
Step 59: 7018 + 121 = 7139
Step 60: 7139 + 121 = 7260
Step 61: 7260 + 121 = 7381
Step 62: 7381 + 121 = 7502
Step 63: 7502 + 121 = 7623
Step 64: 7623 + 121 = 7744
Step 65: 7744 + 121 = 7865
Step 66: 7865 + 121 = 7986
Step 67: 7986 + 121 = 8107
Step 68: 8107 + 121 = 8228
Step 69: 8228 + 121 = 8349
Step 70: 8349 + 121 = 8470
Step 71: 8470 + 121 = 8591
Step 72: 8591 + 121 = 8712
Step 73: 8712 + 121 = 8833
Step 74: 8833 + 121 = 8954
Step 75: 8954 + 121 = 9075
Step 76: 9075 + 121 = 9196
Step 77: 9196 + 121 = 9317
Step 78: 9317 + 121 = 9438

So, 121*78 = 9438