Alright, let's solve this math problem step by step. First, we have the number 391. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 187. So, we're going to take the number 391 and add it to itself 187 times.
Step 1: 0 + 391 = 391
Step 2: 391 + 391 = 782
Step 3: 782 + 391 = 1173
Step 4: 1173 + 391 = 1564
Step 5: 1564 + 391 = 1955
Step 6: 1955 + 391 = 2346
Step 7: 2346 + 391 = 2737
Step 8: 2737 + 391 = 3128
Step 9: 3128 + 391 = 3519
Step 10: 3519 + 391 = 3910
Step 11: 3910 + 391 = 4301
Step 12: 4301 + 391 = 4692
Step 13: 4692 + 391 = 5083
Step 14: 5083 + 391 = 5474
Step 15: 5474 + 391 = 5865
Step 16: 5865 + 391 = 6256
Step 17: 6256 + 391 = 6647
Step 18: 6647 + 391 = 7038
Step 19: 7038 + 391 = 7429
Step 20: 7429 + 391 = 7820
Step 21: 7820 + 391 = 8211
Step 22: 8211 + 391 = 8602
Step 23: 8602 + 391 = 8993
Step 24: 8993 + 391 = 9384
Step 25: 9384 + 391 = 9775
Step 26: 9775 + 391 = 10166
Step 27: 10166 + 391 = 10557
Step 28: 10557 + 391 = 10948
Step 29: 10948 + 391 = 11339
Step 30: 11339 + 391 = 11730
Step 31: 11730 + 391 = 12121
Step 32: 12121 + 391 = 12512
Step 33: 12512 + 391 = 12903
Step 34: 12903 + 391 = 13294
Step 35: 13294 + 391 = 13685
Step 36: 13685 + 391 = 14076
Step 37: 14076 + 391 = 14467
Step 38: 14467 + 391 = 14858
Step 39: 14858 + 391 = 15249
Step 40: 15249 + 391 = 15640
Step 41: 15640 + 391 = 16031
Step 42: 16031 + 391 = 16422
Step 43: 16422 + 391 = 16813
Step 44: 16813 + 391 = 17204
Step 45: 17204 + 391 = 17595
Step 46: 17595 + 391 = 17986
Step 47: 17986 + 391 = 18377
Step 48: 18377 + 391 = 18768
Step 49: 18768 + 391 = 19159
Step 50: 19159 + 391 = 19550
Step 51: 19550 + 391 = 19941
Step 52: 19941 + 391 = 20332
Step 53: 20332 + 391 = 20723
Step 54: 20723 + 391 = 21114
Step 55: 21114 + 391 = 21505
Step 56: 21505 + 391 = 21896
Step 57: 21896 + 391 = 22287
Step 58: 22287 + 391 = 22678
Step 59: 22678 + 391 = 23069
Step 60: 23069 + 391 = 23460
Step 61: 23460 + 391 = 23851
Step 62: 23851 + 391 = 24242
Step 63: 24242 + 391 = 24633
Step 64: 24633 + 391 = 25024
Step 65: 25024 + 391 = 25415
Step 66: 25415 + 391 = 25806
Step 67: 25806 + 391 = 26197
Step 68: 26197 + 391 = 26588
Step 69: 26588 + 391 = 26979
Step 70: 26979 + 391 = 27370
Step 71: 27370 + 391 = 27761
Step 72: 27761 + 391 = 28152
Step 73: 28152 + 391 = 28543
Step 74: 28543 + 391 = 28934
Step 75: 28934 + 391 = 29325
Step 76: 29325 + 391 = 29716
Step 77: 29716 + 391 = 30107
Step 78: 30107 + 391 = 30498
Step 79: 30498 + 391 = 30889
Step 80: 30889 + 391 = 31280
Step 81: 31280 + 391 = 31671
Step 82: 31671 + 391 = 32062
Step 83: 32062 + 391 = 32453
Step 84: 32453 + 391 = 32844
Step 85: 32844 + 391 = 33235
Step 86: 33235 + 391 = 33626
Step 87: 33626 + 391 = 34017
Step 88: 34017 + 391 = 34408
Step 89: 34408 + 391 = 34799
Step 90: 34799 + 391 = 35190
Step 91: 35190 + 391 = 35581
Step 92: 35581 + 391 = 35972
Step 93: 35972 + 391 = 36363
Step 94: 36363 + 391 = 36754
Step 95: 36754 + 391 = 37145
Step 96: 37145 + 391 = 37536
Step 97: 37536 + 391 = 37927
Step 98: 37927 + 391 = 38318
Step 99: 38318 + 391 = 38709
Step 100: 38709 + 391 = 39100
Step 101: 39100 + 391 = 39491
Step 102: 39491 + 391 = 39882
Step 103: 39882 + 391 = 40273
Step 104: 40273 + 391 = 40664
Step 105: 40664 + 391 = 41055
Step 106: 41055 + 391 = 41446
Step 107: 41446 + 391 = 41837
Step 108: 41837 + 391 = 42228
Step 109: 42228 + 391 = 42619
Step 110: 42619 + 391 = 43010
Step 111: 43010 + 391 = 43401
Step 112: 43401 + 391 = 43792
Step 113: 43792 + 391 = 44183
Step 114: 44183 + 391 = 44574
Step 115: 44574 + 391 = 44965
Step 116: 44965 + 391 = 45356
Step 117: 45356 + 391 = 45747
Step 118: 45747 + 391 = 46138
Step 119: 46138 + 391 = 46529
Step 120: 46529 + 391 = 46920
Step 121: 46920 + 391 = 47311
Step 122: 47311 + 391 = 47702
Step 123: 47702 + 391 = 48093
Step 124: 48093 + 391 = 48484
Step 125: 48484 + 391 = 48875
Step 126: 48875 + 391 = 49266
Step 127: 49266 + 391 = 49657
Step 128: 49657 + 391 = 50048
Step 129: 50048 + 391 = 50439
Step 130: 50439 + 391 = 50830
Step 131: 50830 + 391 = 51221
Step 132: 51221 + 391 = 51612
Step 133: 51612 + 391 = 52003
Step 134: 52003 + 391 = 52394
Step 135: 52394 + 391 = 52785
Step 136: 52785 + 391 = 53176
Step 137: 53176 + 391 = 53567
Step 138: 53567 + 391 = 53958
Step 139: 53958 + 391 = 54349
Step 140: 54349 + 391 = 54740
Step 141: 54740 + 391 = 55131
Step 142: 55131 + 391 = 55522
Step 143: 55522 + 391 = 55913
Step 144: 55913 + 391 = 56304
Step 145: 56304 + 391 = 56695
Step 146: 56695 + 391 = 57086
Step 147: 57086 + 391 = 57477
Step 148: 57477 + 391 = 57868
Step 149: 57868 + 391 = 58259
Step 150: 58259 + 391 = 58650
Step 151: 58650 + 391 = 59041
Step 152: 59041 + 391 = 59432
Step 153: 59432 + 391 = 59823
Step 154: 59823 + 391 = 60214
Step 155: 60214 + 391 = 60605
Step 156: 60605 + 391 = 60996
Step 157: 60996 + 391 = 61387
Step 158: 61387 + 391 = 61778
Step 159: 61778 + 391 = 62169
Step 160: 62169 + 391 = 62560
Step 161: 62560 + 391 = 62951
Step 162: 62951 + 391 = 63342
Step 163: 63342 + 391 = 63733
Step 164: 63733 + 391 = 64124
Step 165: 64124 + 391 = 64515
Step 166: 64515 + 391 = 64906
Step 167: 64906 + 391 = 65297
Step 168: 65297 + 391 = 65688
Step 169: 65688 + 391 = 66079
Step 170: 66079 + 391 = 66470
Step 171: 66470 + 391 = 66861
Step 172: 66861 + 391 = 67252
Step 173: 67252 + 391 = 67643
Step 174: 67643 + 391 = 68034
Step 175: 68034 + 391 = 68425
Step 176: 68425 + 391 = 68816
Step 177: 68816 + 391 = 69207
Step 178: 69207 + 391 = 69598
Step 179: 69598 + 391 = 69989
Step 180: 69989 + 391 = 70380
Step 181: 70380 + 391 = 70771
Step 182: 70771 + 391 = 71162
Step 183: 71162 + 391 = 71553
Step 184: 71553 + 391 = 71944
Step 185: 71944 + 391 = 72335
Step 186: 72335 + 391 = 72726
Step 187: 72726 + 391 = 73117

So, 391*187 = 73117