Alright, let's solve this math problem step by step. First, we have the number 137. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 147. So, we're going to take the number 137 and add it to itself 147 times.
Step 1: 0 + 137 = 137
Step 2: 137 + 137 = 274
Step 3: 274 + 137 = 411
Step 4: 411 + 137 = 548
Step 5: 548 + 137 = 685
Step 6: 685 + 137 = 822
Step 7: 822 + 137 = 959
Step 8: 959 + 137 = 1096
Step 9: 1096 + 137 = 1233
Step 10: 1233 + 137 = 1370
Step 11: 1370 + 137 = 1507
Step 12: 1507 + 137 = 1644
Step 13: 1644 + 137 = 1781
Step 14: 1781 + 137 = 1918
Step 15: 1918 + 137 = 2055
Step 16: 2055 + 137 = 2192
Step 17: 2192 + 137 = 2329
Step 18: 2329 + 137 = 2466
Step 19: 2466 + 137 = 2603
Step 20: 2603 + 137 = 2740
Step 21: 2740 + 137 = 2877
Step 22: 2877 + 137 = 3014
Step 23: 3014 + 137 = 3151
Step 24: 3151 + 137 = 3288
Step 25: 3288 + 137 = 3425
Step 26: 3425 + 137 = 3562
Step 27: 3562 + 137 = 3699
Step 28: 3699 + 137 = 3836
Step 29: 3836 + 137 = 3973
Step 30: 3973 + 137 = 4110
Step 31: 4110 + 137 = 4247
Step 32: 4247 + 137 = 4384
Step 33: 4384 + 137 = 4521
Step 34: 4521 + 137 = 4658
Step 35: 4658 + 137 = 4795
Step 36: 4795 + 137 = 4932
Step 37: 4932 + 137 = 5069
Step 38: 5069 + 137 = 5206
Step 39: 5206 + 137 = 5343
Step 40: 5343 + 137 = 5480
Step 41: 5480 + 137 = 5617
Step 42: 5617 + 137 = 5754
Step 43: 5754 + 137 = 5891
Step 44: 5891 + 137 = 6028
Step 45: 6028 + 137 = 6165
Step 46: 6165 + 137 = 6302
Step 47: 6302 + 137 = 6439
Step 48: 6439 + 137 = 6576
Step 49: 6576 + 137 = 6713
Step 50: 6713 + 137 = 6850
Step 51: 6850 + 137 = 6987
Step 52: 6987 + 137 = 7124
Step 53: 7124 + 137 = 7261
Step 54: 7261 + 137 = 7398
Step 55: 7398 + 137 = 7535
Step 56: 7535 + 137 = 7672
Step 57: 7672 + 137 = 7809
Step 58: 7809 + 137 = 7946
Step 59: 7946 + 137 = 8083
Step 60: 8083 + 137 = 8220
Step 61: 8220 + 137 = 8357
Step 62: 8357 + 137 = 8494
Step 63: 8494 + 137 = 8631
Step 64: 8631 + 137 = 8768
Step 65: 8768 + 137 = 8905
Step 66: 8905 + 137 = 9042
Step 67: 9042 + 137 = 9179
Step 68: 9179 + 137 = 9316
Step 69: 9316 + 137 = 9453
Step 70: 9453 + 137 = 9590
Step 71: 9590 + 137 = 9727
Step 72: 9727 + 137 = 9864
Step 73: 9864 + 137 = 10001
Step 74: 10001 + 137 = 10138
Step 75: 10138 + 137 = 10275
Step 76: 10275 + 137 = 10412
Step 77: 10412 + 137 = 10549
Step 78: 10549 + 137 = 10686
Step 79: 10686 + 137 = 10823
Step 80: 10823 + 137 = 10960
Step 81: 10960 + 137 = 11097
Step 82: 11097 + 137 = 11234
Step 83: 11234 + 137 = 11371
Step 84: 11371 + 137 = 11508
Step 85: 11508 + 137 = 11645
Step 86: 11645 + 137 = 11782
Step 87: 11782 + 137 = 11919
Step 88: 11919 + 137 = 12056
Step 89: 12056 + 137 = 12193
Step 90: 12193 + 137 = 12330
Step 91: 12330 + 137 = 12467
Step 92: 12467 + 137 = 12604
Step 93: 12604 + 137 = 12741
Step 94: 12741 + 137 = 12878
Step 95: 12878 + 137 = 13015
Step 96: 13015 + 137 = 13152
Step 97: 13152 + 137 = 13289
Step 98: 13289 + 137 = 13426
Step 99: 13426 + 137 = 13563
Step 100: 13563 + 137 = 13700
Step 101: 13700 + 137 = 13837
Step 102: 13837 + 137 = 13974
Step 103: 13974 + 137 = 14111
Step 104: 14111 + 137 = 14248
Step 105: 14248 + 137 = 14385
Step 106: 14385 + 137 = 14522
Step 107: 14522 + 137 = 14659
Step 108: 14659 + 137 = 14796
Step 109: 14796 + 137 = 14933
Step 110: 14933 + 137 = 15070
Step 111: 15070 + 137 = 15207
Step 112: 15207 + 137 = 15344
Step 113: 15344 + 137 = 15481
Step 114: 15481 + 137 = 15618
Step 115: 15618 + 137 = 15755
Step 116: 15755 + 137 = 15892
Step 117: 15892 + 137 = 16029
Step 118: 16029 + 137 = 16166
Step 119: 16166 + 137 = 16303
Step 120: 16303 + 137 = 16440
Step 121: 16440 + 137 = 16577
Step 122: 16577 + 137 = 16714
Step 123: 16714 + 137 = 16851
Step 124: 16851 + 137 = 16988
Step 125: 16988 + 137 = 17125
Step 126: 17125 + 137 = 17262
Step 127: 17262 + 137 = 17399
Step 128: 17399 + 137 = 17536
Step 129: 17536 + 137 = 17673
Step 130: 17673 + 137 = 17810
Step 131: 17810 + 137 = 17947
Step 132: 17947 + 137 = 18084
Step 133: 18084 + 137 = 18221
Step 134: 18221 + 137 = 18358
Step 135: 18358 + 137 = 18495
Step 136: 18495 + 137 = 18632
Step 137: 18632 + 137 = 18769
Step 138: 18769 + 137 = 18906
Step 139: 18906 + 137 = 19043
Step 140: 19043 + 137 = 19180
Step 141: 19180 + 137 = 19317
Step 142: 19317 + 137 = 19454
Step 143: 19454 + 137 = 19591
Step 144: 19591 + 137 = 19728
Step 145: 19728 + 137 = 19865
Step 146: 19865 + 137 = 20002
Step 147: 20002 + 137 = 20139

So, 137*147 = 20139