Alright, let's solve this math problem step by step. First, we have the number 122. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 158. So, we're going to take the number 122 and add it to itself 158 times.
Step 1: 0 + 122 = 122
Step 2: 122 + 122 = 244
Step 3: 244 + 122 = 366
Step 4: 366 + 122 = 488
Step 5: 488 + 122 = 610
Step 6: 610 + 122 = 732
Step 7: 732 + 122 = 854
Step 8: 854 + 122 = 976
Step 9: 976 + 122 = 1098
Step 10: 1098 + 122 = 1220
Step 11: 1220 + 122 = 1342
Step 12: 1342 + 122 = 1464
Step 13: 1464 + 122 = 1586
Step 14: 1586 + 122 = 1708
Step 15: 1708 + 122 = 1830
Step 16: 1830 + 122 = 1952
Step 17: 1952 + 122 = 2074
Step 18: 2074 + 122 = 2196
Step 19: 2196 + 122 = 2318
Step 20: 2318 + 122 = 2440
Step 21: 2440 + 122 = 2562
Step 22: 2562 + 122 = 2684
Step 23: 2684 + 122 = 2806
Step 24: 2806 + 122 = 2928
Step 25: 2928 + 122 = 3050
Step 26: 3050 + 122 = 3172
Step 27: 3172 + 122 = 3294
Step 28: 3294 + 122 = 3416
Step 29: 3416 + 122 = 3538
Step 30: 3538 + 122 = 3660
Step 31: 3660 + 122 = 3782
Step 32: 3782 + 122 = 3904
Step 33: 3904 + 122 = 4026
Step 34: 4026 + 122 = 4148
Step 35: 4148 + 122 = 4270
Step 36: 4270 + 122 = 4392
Step 37: 4392 + 122 = 4514
Step 38: 4514 + 122 = 4636
Step 39: 4636 + 122 = 4758
Step 40: 4758 + 122 = 4880
Step 41: 4880 + 122 = 5002
Step 42: 5002 + 122 = 5124
Step 43: 5124 + 122 = 5246
Step 44: 5246 + 122 = 5368
Step 45: 5368 + 122 = 5490
Step 46: 5490 + 122 = 5612
Step 47: 5612 + 122 = 5734
Step 48: 5734 + 122 = 5856
Step 49: 5856 + 122 = 5978
Step 50: 5978 + 122 = 6100
Step 51: 6100 + 122 = 6222
Step 52: 6222 + 122 = 6344
Step 53: 6344 + 122 = 6466
Step 54: 6466 + 122 = 6588
Step 55: 6588 + 122 = 6710
Step 56: 6710 + 122 = 6832
Step 57: 6832 + 122 = 6954
Step 58: 6954 + 122 = 7076
Step 59: 7076 + 122 = 7198
Step 60: 7198 + 122 = 7320
Step 61: 7320 + 122 = 7442
Step 62: 7442 + 122 = 7564
Step 63: 7564 + 122 = 7686
Step 64: 7686 + 122 = 7808
Step 65: 7808 + 122 = 7930
Step 66: 7930 + 122 = 8052
Step 67: 8052 + 122 = 8174
Step 68: 8174 + 122 = 8296
Step 69: 8296 + 122 = 8418
Step 70: 8418 + 122 = 8540
Step 71: 8540 + 122 = 8662
Step 72: 8662 + 122 = 8784
Step 73: 8784 + 122 = 8906
Step 74: 8906 + 122 = 9028
Step 75: 9028 + 122 = 9150
Step 76: 9150 + 122 = 9272
Step 77: 9272 + 122 = 9394
Step 78: 9394 + 122 = 9516
Step 79: 9516 + 122 = 9638
Step 80: 9638 + 122 = 9760
Step 81: 9760 + 122 = 9882
Step 82: 9882 + 122 = 10004
Step 83: 10004 + 122 = 10126
Step 84: 10126 + 122 = 10248
Step 85: 10248 + 122 = 10370
Step 86: 10370 + 122 = 10492
Step 87: 10492 + 122 = 10614
Step 88: 10614 + 122 = 10736
Step 89: 10736 + 122 = 10858
Step 90: 10858 + 122 = 10980
Step 91: 10980 + 122 = 11102
Step 92: 11102 + 122 = 11224
Step 93: 11224 + 122 = 11346
Step 94: 11346 + 122 = 11468
Step 95: 11468 + 122 = 11590
Step 96: 11590 + 122 = 11712
Step 97: 11712 + 122 = 11834
Step 98: 11834 + 122 = 11956
Step 99: 11956 + 122 = 12078
Step 100: 12078 + 122 = 12200
Step 101: 12200 + 122 = 12322
Step 102: 12322 + 122 = 12444
Step 103: 12444 + 122 = 12566
Step 104: 12566 + 122 = 12688
Step 105: 12688 + 122 = 12810
Step 106: 12810 + 122 = 12932
Step 107: 12932 + 122 = 13054
Step 108: 13054 + 122 = 13176
Step 109: 13176 + 122 = 13298
Step 110: 13298 + 122 = 13420
Step 111: 13420 + 122 = 13542
Step 112: 13542 + 122 = 13664
Step 113: 13664 + 122 = 13786
Step 114: 13786 + 122 = 13908
Step 115: 13908 + 122 = 14030
Step 116: 14030 + 122 = 14152
Step 117: 14152 + 122 = 14274
Step 118: 14274 + 122 = 14396
Step 119: 14396 + 122 = 14518
Step 120: 14518 + 122 = 14640
Step 121: 14640 + 122 = 14762
Step 122: 14762 + 122 = 14884
Step 123: 14884 + 122 = 15006
Step 124: 15006 + 122 = 15128
Step 125: 15128 + 122 = 15250
Step 126: 15250 + 122 = 15372
Step 127: 15372 + 122 = 15494
Step 128: 15494 + 122 = 15616
Step 129: 15616 + 122 = 15738
Step 130: 15738 + 122 = 15860
Step 131: 15860 + 122 = 15982
Step 132: 15982 + 122 = 16104
Step 133: 16104 + 122 = 16226
Step 134: 16226 + 122 = 16348
Step 135: 16348 + 122 = 16470
Step 136: 16470 + 122 = 16592
Step 137: 16592 + 122 = 16714
Step 138: 16714 + 122 = 16836
Step 139: 16836 + 122 = 16958
Step 140: 16958 + 122 = 17080
Step 141: 17080 + 122 = 17202
Step 142: 17202 + 122 = 17324
Step 143: 17324 + 122 = 17446
Step 144: 17446 + 122 = 17568
Step 145: 17568 + 122 = 17690
Step 146: 17690 + 122 = 17812
Step 147: 17812 + 122 = 17934
Step 148: 17934 + 122 = 18056
Step 149: 18056 + 122 = 18178
Step 150: 18178 + 122 = 18300
Step 151: 18300 + 122 = 18422
Step 152: 18422 + 122 = 18544
Step 153: 18544 + 122 = 18666
Step 154: 18666 + 122 = 18788
Step 155: 18788 + 122 = 18910
Step 156: 18910 + 122 = 19032
Step 157: 19032 + 122 = 19154
Step 158: 19154 + 122 = 19276

So, 122*158 = 19276