Alright, let's solve this math problem step by step. First, we have the number 421. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 122. So, we're going to take the number 421 and add it to itself 122 times.
Step 1: 0 + 421 = 421
Step 2: 421 + 421 = 842
Step 3: 842 + 421 = 1263
Step 4: 1263 + 421 = 1684
Step 5: 1684 + 421 = 2105
Step 6: 2105 + 421 = 2526
Step 7: 2526 + 421 = 2947
Step 8: 2947 + 421 = 3368
Step 9: 3368 + 421 = 3789
Step 10: 3789 + 421 = 4210
Step 11: 4210 + 421 = 4631
Step 12: 4631 + 421 = 5052
Step 13: 5052 + 421 = 5473
Step 14: 5473 + 421 = 5894
Step 15: 5894 + 421 = 6315
Step 16: 6315 + 421 = 6736
Step 17: 6736 + 421 = 7157
Step 18: 7157 + 421 = 7578
Step 19: 7578 + 421 = 7999
Step 20: 7999 + 421 = 8420
Step 21: 8420 + 421 = 8841
Step 22: 8841 + 421 = 9262
Step 23: 9262 + 421 = 9683
Step 24: 9683 + 421 = 10104
Step 25: 10104 + 421 = 10525
Step 26: 10525 + 421 = 10946
Step 27: 10946 + 421 = 11367
Step 28: 11367 + 421 = 11788
Step 29: 11788 + 421 = 12209
Step 30: 12209 + 421 = 12630
Step 31: 12630 + 421 = 13051
Step 32: 13051 + 421 = 13472
Step 33: 13472 + 421 = 13893
Step 34: 13893 + 421 = 14314
Step 35: 14314 + 421 = 14735
Step 36: 14735 + 421 = 15156
Step 37: 15156 + 421 = 15577
Step 38: 15577 + 421 = 15998
Step 39: 15998 + 421 = 16419
Step 40: 16419 + 421 = 16840
Step 41: 16840 + 421 = 17261
Step 42: 17261 + 421 = 17682
Step 43: 17682 + 421 = 18103
Step 44: 18103 + 421 = 18524
Step 45: 18524 + 421 = 18945
Step 46: 18945 + 421 = 19366
Step 47: 19366 + 421 = 19787
Step 48: 19787 + 421 = 20208
Step 49: 20208 + 421 = 20629
Step 50: 20629 + 421 = 21050
Step 51: 21050 + 421 = 21471
Step 52: 21471 + 421 = 21892
Step 53: 21892 + 421 = 22313
Step 54: 22313 + 421 = 22734
Step 55: 22734 + 421 = 23155
Step 56: 23155 + 421 = 23576
Step 57: 23576 + 421 = 23997
Step 58: 23997 + 421 = 24418
Step 59: 24418 + 421 = 24839
Step 60: 24839 + 421 = 25260
Step 61: 25260 + 421 = 25681
Step 62: 25681 + 421 = 26102
Step 63: 26102 + 421 = 26523
Step 64: 26523 + 421 = 26944
Step 65: 26944 + 421 = 27365
Step 66: 27365 + 421 = 27786
Step 67: 27786 + 421 = 28207
Step 68: 28207 + 421 = 28628
Step 69: 28628 + 421 = 29049
Step 70: 29049 + 421 = 29470
Step 71: 29470 + 421 = 29891
Step 72: 29891 + 421 = 30312
Step 73: 30312 + 421 = 30733
Step 74: 30733 + 421 = 31154
Step 75: 31154 + 421 = 31575
Step 76: 31575 + 421 = 31996
Step 77: 31996 + 421 = 32417
Step 78: 32417 + 421 = 32838
Step 79: 32838 + 421 = 33259
Step 80: 33259 + 421 = 33680
Step 81: 33680 + 421 = 34101
Step 82: 34101 + 421 = 34522
Step 83: 34522 + 421 = 34943
Step 84: 34943 + 421 = 35364
Step 85: 35364 + 421 = 35785
Step 86: 35785 + 421 = 36206
Step 87: 36206 + 421 = 36627
Step 88: 36627 + 421 = 37048
Step 89: 37048 + 421 = 37469
Step 90: 37469 + 421 = 37890
Step 91: 37890 + 421 = 38311
Step 92: 38311 + 421 = 38732
Step 93: 38732 + 421 = 39153
Step 94: 39153 + 421 = 39574
Step 95: 39574 + 421 = 39995
Step 96: 39995 + 421 = 40416
Step 97: 40416 + 421 = 40837
Step 98: 40837 + 421 = 41258
Step 99: 41258 + 421 = 41679
Step 100: 41679 + 421 = 42100
Step 101: 42100 + 421 = 42521
Step 102: 42521 + 421 = 42942
Step 103: 42942 + 421 = 43363
Step 104: 43363 + 421 = 43784
Step 105: 43784 + 421 = 44205
Step 106: 44205 + 421 = 44626
Step 107: 44626 + 421 = 45047
Step 108: 45047 + 421 = 45468
Step 109: 45468 + 421 = 45889
Step 110: 45889 + 421 = 46310
Step 111: 46310 + 421 = 46731
Step 112: 46731 + 421 = 47152
Step 113: 47152 + 421 = 47573
Step 114: 47573 + 421 = 47994
Step 115: 47994 + 421 = 48415
Step 116: 48415 + 421 = 48836
Step 117: 48836 + 421 = 49257
Step 118: 49257 + 421 = 49678
Step 119: 49678 + 421 = 50099
Step 120: 50099 + 421 = 50520
Step 121: 50520 + 421 = 50941
Step 122: 50941 + 421 = 51362

So, 421*122 = 51362