Alright, let's solve this math problem step by step. First, we have the number 126. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 155. So, we're going to take the number 126 and add it to itself 155 times.
Step 1: 0 + 126 = 126
Step 2: 126 + 126 = 252
Step 3: 252 + 126 = 378
Step 4: 378 + 126 = 504
Step 5: 504 + 126 = 630
Step 6: 630 + 126 = 756
Step 7: 756 + 126 = 882
Step 8: 882 + 126 = 1008
Step 9: 1008 + 126 = 1134
Step 10: 1134 + 126 = 1260
Step 11: 1260 + 126 = 1386
Step 12: 1386 + 126 = 1512
Step 13: 1512 + 126 = 1638
Step 14: 1638 + 126 = 1764
Step 15: 1764 + 126 = 1890
Step 16: 1890 + 126 = 2016
Step 17: 2016 + 126 = 2142
Step 18: 2142 + 126 = 2268
Step 19: 2268 + 126 = 2394
Step 20: 2394 + 126 = 2520
Step 21: 2520 + 126 = 2646
Step 22: 2646 + 126 = 2772
Step 23: 2772 + 126 = 2898
Step 24: 2898 + 126 = 3024
Step 25: 3024 + 126 = 3150
Step 26: 3150 + 126 = 3276
Step 27: 3276 + 126 = 3402
Step 28: 3402 + 126 = 3528
Step 29: 3528 + 126 = 3654
Step 30: 3654 + 126 = 3780
Step 31: 3780 + 126 = 3906
Step 32: 3906 + 126 = 4032
Step 33: 4032 + 126 = 4158
Step 34: 4158 + 126 = 4284
Step 35: 4284 + 126 = 4410
Step 36: 4410 + 126 = 4536
Step 37: 4536 + 126 = 4662
Step 38: 4662 + 126 = 4788
Step 39: 4788 + 126 = 4914
Step 40: 4914 + 126 = 5040
Step 41: 5040 + 126 = 5166
Step 42: 5166 + 126 = 5292
Step 43: 5292 + 126 = 5418
Step 44: 5418 + 126 = 5544
Step 45: 5544 + 126 = 5670
Step 46: 5670 + 126 = 5796
Step 47: 5796 + 126 = 5922
Step 48: 5922 + 126 = 6048
Step 49: 6048 + 126 = 6174
Step 50: 6174 + 126 = 6300
Step 51: 6300 + 126 = 6426
Step 52: 6426 + 126 = 6552
Step 53: 6552 + 126 = 6678
Step 54: 6678 + 126 = 6804
Step 55: 6804 + 126 = 6930
Step 56: 6930 + 126 = 7056
Step 57: 7056 + 126 = 7182
Step 58: 7182 + 126 = 7308
Step 59: 7308 + 126 = 7434
Step 60: 7434 + 126 = 7560
Step 61: 7560 + 126 = 7686
Step 62: 7686 + 126 = 7812
Step 63: 7812 + 126 = 7938
Step 64: 7938 + 126 = 8064
Step 65: 8064 + 126 = 8190
Step 66: 8190 + 126 = 8316
Step 67: 8316 + 126 = 8442
Step 68: 8442 + 126 = 8568
Step 69: 8568 + 126 = 8694
Step 70: 8694 + 126 = 8820
Step 71: 8820 + 126 = 8946
Step 72: 8946 + 126 = 9072
Step 73: 9072 + 126 = 9198
Step 74: 9198 + 126 = 9324
Step 75: 9324 + 126 = 9450
Step 76: 9450 + 126 = 9576
Step 77: 9576 + 126 = 9702
Step 78: 9702 + 126 = 9828
Step 79: 9828 + 126 = 9954
Step 80: 9954 + 126 = 10080
Step 81: 10080 + 126 = 10206
Step 82: 10206 + 126 = 10332
Step 83: 10332 + 126 = 10458
Step 84: 10458 + 126 = 10584
Step 85: 10584 + 126 = 10710
Step 86: 10710 + 126 = 10836
Step 87: 10836 + 126 = 10962
Step 88: 10962 + 126 = 11088
Step 89: 11088 + 126 = 11214
Step 90: 11214 + 126 = 11340
Step 91: 11340 + 126 = 11466
Step 92: 11466 + 126 = 11592
Step 93: 11592 + 126 = 11718
Step 94: 11718 + 126 = 11844
Step 95: 11844 + 126 = 11970
Step 96: 11970 + 126 = 12096
Step 97: 12096 + 126 = 12222
Step 98: 12222 + 126 = 12348
Step 99: 12348 + 126 = 12474
Step 100: 12474 + 126 = 12600
Step 101: 12600 + 126 = 12726
Step 102: 12726 + 126 = 12852
Step 103: 12852 + 126 = 12978
Step 104: 12978 + 126 = 13104
Step 105: 13104 + 126 = 13230
Step 106: 13230 + 126 = 13356
Step 107: 13356 + 126 = 13482
Step 108: 13482 + 126 = 13608
Step 109: 13608 + 126 = 13734
Step 110: 13734 + 126 = 13860
Step 111: 13860 + 126 = 13986
Step 112: 13986 + 126 = 14112
Step 113: 14112 + 126 = 14238
Step 114: 14238 + 126 = 14364
Step 115: 14364 + 126 = 14490
Step 116: 14490 + 126 = 14616
Step 117: 14616 + 126 = 14742
Step 118: 14742 + 126 = 14868
Step 119: 14868 + 126 = 14994
Step 120: 14994 + 126 = 15120
Step 121: 15120 + 126 = 15246
Step 122: 15246 + 126 = 15372
Step 123: 15372 + 126 = 15498
Step 124: 15498 + 126 = 15624
Step 125: 15624 + 126 = 15750
Step 126: 15750 + 126 = 15876
Step 127: 15876 + 126 = 16002
Step 128: 16002 + 126 = 16128
Step 129: 16128 + 126 = 16254
Step 130: 16254 + 126 = 16380
Step 131: 16380 + 126 = 16506
Step 132: 16506 + 126 = 16632
Step 133: 16632 + 126 = 16758
Step 134: 16758 + 126 = 16884
Step 135: 16884 + 126 = 17010
Step 136: 17010 + 126 = 17136
Step 137: 17136 + 126 = 17262
Step 138: 17262 + 126 = 17388
Step 139: 17388 + 126 = 17514
Step 140: 17514 + 126 = 17640
Step 141: 17640 + 126 = 17766
Step 142: 17766 + 126 = 17892
Step 143: 17892 + 126 = 18018
Step 144: 18018 + 126 = 18144
Step 145: 18144 + 126 = 18270
Step 146: 18270 + 126 = 18396
Step 147: 18396 + 126 = 18522
Step 148: 18522 + 126 = 18648
Step 149: 18648 + 126 = 18774
Step 150: 18774 + 126 = 18900
Step 151: 18900 + 126 = 19026
Step 152: 19026 + 126 = 19152
Step 153: 19152 + 126 = 19278
Step 154: 19278 + 126 = 19404
Step 155: 19404 + 126 = 19530

So, 126*155 = 19530