Alright, let's solve this math problem step by step. First, we have the number 156. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 173. So, we're going to take the number 156 and add it to itself 173 times.
Step 1: 0 + 156 = 156
Step 2: 156 + 156 = 312
Step 3: 312 + 156 = 468
Step 4: 468 + 156 = 624
Step 5: 624 + 156 = 780
Step 6: 780 + 156 = 936
Step 7: 936 + 156 = 1092
Step 8: 1092 + 156 = 1248
Step 9: 1248 + 156 = 1404
Step 10: 1404 + 156 = 1560
Step 11: 1560 + 156 = 1716
Step 12: 1716 + 156 = 1872
Step 13: 1872 + 156 = 2028
Step 14: 2028 + 156 = 2184
Step 15: 2184 + 156 = 2340
Step 16: 2340 + 156 = 2496
Step 17: 2496 + 156 = 2652
Step 18: 2652 + 156 = 2808
Step 19: 2808 + 156 = 2964
Step 20: 2964 + 156 = 3120
Step 21: 3120 + 156 = 3276
Step 22: 3276 + 156 = 3432
Step 23: 3432 + 156 = 3588
Step 24: 3588 + 156 = 3744
Step 25: 3744 + 156 = 3900
Step 26: 3900 + 156 = 4056
Step 27: 4056 + 156 = 4212
Step 28: 4212 + 156 = 4368
Step 29: 4368 + 156 = 4524
Step 30: 4524 + 156 = 4680
Step 31: 4680 + 156 = 4836
Step 32: 4836 + 156 = 4992
Step 33: 4992 + 156 = 5148
Step 34: 5148 + 156 = 5304
Step 35: 5304 + 156 = 5460
Step 36: 5460 + 156 = 5616
Step 37: 5616 + 156 = 5772
Step 38: 5772 + 156 = 5928
Step 39: 5928 + 156 = 6084
Step 40: 6084 + 156 = 6240
Step 41: 6240 + 156 = 6396
Step 42: 6396 + 156 = 6552
Step 43: 6552 + 156 = 6708
Step 44: 6708 + 156 = 6864
Step 45: 6864 + 156 = 7020
Step 46: 7020 + 156 = 7176
Step 47: 7176 + 156 = 7332
Step 48: 7332 + 156 = 7488
Step 49: 7488 + 156 = 7644
Step 50: 7644 + 156 = 7800
Step 51: 7800 + 156 = 7956
Step 52: 7956 + 156 = 8112
Step 53: 8112 + 156 = 8268
Step 54: 8268 + 156 = 8424
Step 55: 8424 + 156 = 8580
Step 56: 8580 + 156 = 8736
Step 57: 8736 + 156 = 8892
Step 58: 8892 + 156 = 9048
Step 59: 9048 + 156 = 9204
Step 60: 9204 + 156 = 9360
Step 61: 9360 + 156 = 9516
Step 62: 9516 + 156 = 9672
Step 63: 9672 + 156 = 9828
Step 64: 9828 + 156 = 9984
Step 65: 9984 + 156 = 10140
Step 66: 10140 + 156 = 10296
Step 67: 10296 + 156 = 10452
Step 68: 10452 + 156 = 10608
Step 69: 10608 + 156 = 10764
Step 70: 10764 + 156 = 10920
Step 71: 10920 + 156 = 11076
Step 72: 11076 + 156 = 11232
Step 73: 11232 + 156 = 11388
Step 74: 11388 + 156 = 11544
Step 75: 11544 + 156 = 11700
Step 76: 11700 + 156 = 11856
Step 77: 11856 + 156 = 12012
Step 78: 12012 + 156 = 12168
Step 79: 12168 + 156 = 12324
Step 80: 12324 + 156 = 12480
Step 81: 12480 + 156 = 12636
Step 82: 12636 + 156 = 12792
Step 83: 12792 + 156 = 12948
Step 84: 12948 + 156 = 13104
Step 85: 13104 + 156 = 13260
Step 86: 13260 + 156 = 13416
Step 87: 13416 + 156 = 13572
Step 88: 13572 + 156 = 13728
Step 89: 13728 + 156 = 13884
Step 90: 13884 + 156 = 14040
Step 91: 14040 + 156 = 14196
Step 92: 14196 + 156 = 14352
Step 93: 14352 + 156 = 14508
Step 94: 14508 + 156 = 14664
Step 95: 14664 + 156 = 14820
Step 96: 14820 + 156 = 14976
Step 97: 14976 + 156 = 15132
Step 98: 15132 + 156 = 15288
Step 99: 15288 + 156 = 15444
Step 100: 15444 + 156 = 15600
Step 101: 15600 + 156 = 15756
Step 102: 15756 + 156 = 15912
Step 103: 15912 + 156 = 16068
Step 104: 16068 + 156 = 16224
Step 105: 16224 + 156 = 16380
Step 106: 16380 + 156 = 16536
Step 107: 16536 + 156 = 16692
Step 108: 16692 + 156 = 16848
Step 109: 16848 + 156 = 17004
Step 110: 17004 + 156 = 17160
Step 111: 17160 + 156 = 17316
Step 112: 17316 + 156 = 17472
Step 113: 17472 + 156 = 17628
Step 114: 17628 + 156 = 17784
Step 115: 17784 + 156 = 17940
Step 116: 17940 + 156 = 18096
Step 117: 18096 + 156 = 18252
Step 118: 18252 + 156 = 18408
Step 119: 18408 + 156 = 18564
Step 120: 18564 + 156 = 18720
Step 121: 18720 + 156 = 18876
Step 122: 18876 + 156 = 19032
Step 123: 19032 + 156 = 19188
Step 124: 19188 + 156 = 19344
Step 125: 19344 + 156 = 19500
Step 126: 19500 + 156 = 19656
Step 127: 19656 + 156 = 19812
Step 128: 19812 + 156 = 19968
Step 129: 19968 + 156 = 20124
Step 130: 20124 + 156 = 20280
Step 131: 20280 + 156 = 20436
Step 132: 20436 + 156 = 20592
Step 133: 20592 + 156 = 20748
Step 134: 20748 + 156 = 20904
Step 135: 20904 + 156 = 21060
Step 136: 21060 + 156 = 21216
Step 137: 21216 + 156 = 21372
Step 138: 21372 + 156 = 21528
Step 139: 21528 + 156 = 21684
Step 140: 21684 + 156 = 21840
Step 141: 21840 + 156 = 21996
Step 142: 21996 + 156 = 22152
Step 143: 22152 + 156 = 22308
Step 144: 22308 + 156 = 22464
Step 145: 22464 + 156 = 22620
Step 146: 22620 + 156 = 22776
Step 147: 22776 + 156 = 22932
Step 148: 22932 + 156 = 23088
Step 149: 23088 + 156 = 23244
Step 150: 23244 + 156 = 23400
Step 151: 23400 + 156 = 23556
Step 152: 23556 + 156 = 23712
Step 153: 23712 + 156 = 23868
Step 154: 23868 + 156 = 24024
Step 155: 24024 + 156 = 24180
Step 156: 24180 + 156 = 24336
Step 157: 24336 + 156 = 24492
Step 158: 24492 + 156 = 24648
Step 159: 24648 + 156 = 24804
Step 160: 24804 + 156 = 24960
Step 161: 24960 + 156 = 25116
Step 162: 25116 + 156 = 25272
Step 163: 25272 + 156 = 25428
Step 164: 25428 + 156 = 25584
Step 165: 25584 + 156 = 25740
Step 166: 25740 + 156 = 25896
Step 167: 25896 + 156 = 26052
Step 168: 26052 + 156 = 26208
Step 169: 26208 + 156 = 26364
Step 170: 26364 + 156 = 26520
Step 171: 26520 + 156 = 26676
Step 172: 26676 + 156 = 26832
Step 173: 26832 + 156 = 26988

So, 156*173 = 26988