Sure thing! We've got 687 and we're gonna multiply it by 188. That's the same as adding 687 to itself 188 times.
Step 1: 0 + 687 = 687
Step 2: 687 + 687 = 1374
Step 3: 1374 + 687 = 2061
Step 4: 2061 + 687 = 2748
Step 5: 2748 + 687 = 3435
Step 6: 3435 + 687 = 4122
Step 7: 4122 + 687 = 4809
Step 8: 4809 + 687 = 5496
Step 9: 5496 + 687 = 6183
Step 10: 6183 + 687 = 6870
Step 11: 6870 + 687 = 7557
Step 12: 7557 + 687 = 8244
Step 13: 8244 + 687 = 8931
Step 14: 8931 + 687 = 9618
Step 15: 9618 + 687 = 10305
Step 16: 10305 + 687 = 10992
Step 17: 10992 + 687 = 11679
Step 18: 11679 + 687 = 12366
Step 19: 12366 + 687 = 13053
Step 20: 13053 + 687 = 13740
Step 21: 13740 + 687 = 14427
Step 22: 14427 + 687 = 15114
Step 23: 15114 + 687 = 15801
Step 24: 15801 + 687 = 16488
Step 25: 16488 + 687 = 17175
Step 26: 17175 + 687 = 17862
Step 27: 17862 + 687 = 18549
Step 28: 18549 + 687 = 19236
Step 29: 19236 + 687 = 19923
Step 30: 19923 + 687 = 20610
Step 31: 20610 + 687 = 21297
Step 32: 21297 + 687 = 21984
Step 33: 21984 + 687 = 22671
Step 34: 22671 + 687 = 23358
Step 35: 23358 + 687 = 24045
Step 36: 24045 + 687 = 24732
Step 37: 24732 + 687 = 25419
Step 38: 25419 + 687 = 26106
Step 39: 26106 + 687 = 26793
Step 40: 26793 + 687 = 27480
Step 41: 27480 + 687 = 28167
Step 42: 28167 + 687 = 28854
Step 43: 28854 + 687 = 29541
Step 44: 29541 + 687 = 30228
Step 45: 30228 + 687 = 30915
Step 46: 30915 + 687 = 31602
Step 47: 31602 + 687 = 32289
Step 48: 32289 + 687 = 32976
Step 49: 32976 + 687 = 33663
Step 50: 33663 + 687 = 34350
Step 51: 34350 + 687 = 35037
Step 52: 35037 + 687 = 35724
Step 53: 35724 + 687 = 36411
Step 54: 36411 + 687 = 37098
Step 55: 37098 + 687 = 37785
Step 56: 37785 + 687 = 38472
Step 57: 38472 + 687 = 39159
Step 58: 39159 + 687 = 39846
Step 59: 39846 + 687 = 40533
Step 60: 40533 + 687 = 41220
Step 61: 41220 + 687 = 41907
Step 62: 41907 + 687 = 42594
Step 63: 42594 + 687 = 43281
Step 64: 43281 + 687 = 43968
Step 65: 43968 + 687 = 44655
Step 66: 44655 + 687 = 45342
Step 67: 45342 + 687 = 46029
Step 68: 46029 + 687 = 46716
Step 69: 46716 + 687 = 47403
Step 70: 47403 + 687 = 48090
Step 71: 48090 + 687 = 48777
Step 72: 48777 + 687 = 49464
Step 73: 49464 + 687 = 50151
Step 74: 50151 + 687 = 50838
Step 75: 50838 + 687 = 51525
Step 76: 51525 + 687 = 52212
Step 77: 52212 + 687 = 52899
Step 78: 52899 + 687 = 53586
Step 79: 53586 + 687 = 54273
Step 80: 54273 + 687 = 54960
Step 81: 54960 + 687 = 55647
Step 82: 55647 + 687 = 56334
Step 83: 56334 + 687 = 57021
Step 84: 57021 + 687 = 57708
Step 85: 57708 + 687 = 58395
Step 86: 58395 + 687 = 59082
Step 87: 59082 + 687 = 59769
Step 88: 59769 + 687 = 60456
Step 89: 60456 + 687 = 61143
Step 90: 61143 + 687 = 61830
Step 91: 61830 + 687 = 62517
Step 92: 62517 + 687 = 63204
Step 93: 63204 + 687 = 63891
Step 94: 63891 + 687 = 64578
Step 95: 64578 + 687 = 65265
Step 96: 65265 + 687 = 65952
Step 97: 65952 + 687 = 66639
Step 98: 66639 + 687 = 67326
Step 99: 67326 + 687 = 68013
Step 100: 68013 + 687 = 68700
Step 101: 68700 + 687 = 69387
Step 102: 69387 + 687 = 70074
Step 103: 70074 + 687 = 70761
Step 104: 70761 + 687 = 71448
Step 105: 71448 + 687 = 72135
Step 106: 72135 + 687 = 72822
Step 107: 72822 + 687 = 73509
Step 108: 73509 + 687 = 74196
Step 109: 74196 + 687 = 74883
Step 110: 74883 + 687 = 75570
Step 111: 75570 + 687 = 76257
Step 112: 76257 + 687 = 76944
Step 113: 76944 + 687 = 77631
Step 114: 77631 + 687 = 78318
Step 115: 78318 + 687 = 79005
Step 116: 79005 + 687 = 79692
Step 117: 79692 + 687 = 80379
Step 118: 80379 + 687 = 81066
Step 119: 81066 + 687 = 81753
Step 120: 81753 + 687 = 82440
Step 121: 82440 + 687 = 83127
Step 122: 83127 + 687 = 83814
Step 123: 83814 + 687 = 84501
Step 124: 84501 + 687 = 85188
Step 125: 85188 + 687 = 85875
Step 126: 85875 + 687 = 86562
Step 127: 86562 + 687 = 87249
Step 128: 87249 + 687 = 87936
Step 129: 87936 + 687 = 88623
Step 130: 88623 + 687 = 89310
Step 131: 89310 + 687 = 89997
Step 132: 89997 + 687 = 90684
Step 133: 90684 + 687 = 91371
Step 134: 91371 + 687 = 92058
Step 135: 92058 + 687 = 92745
Step 136: 92745 + 687 = 93432
Step 137: 93432 + 687 = 94119
Step 138: 94119 + 687 = 94806
Step 139: 94806 + 687 = 95493
Step 140: 95493 + 687 = 96180
Step 141: 96180 + 687 = 96867
Step 142: 96867 + 687 = 97554
Step 143: 97554 + 687 = 98241
Step 144: 98241 + 687 = 98928
Step 145: 98928 + 687 = 99615
Step 146: 99615 + 687 = 100302
Step 147: 100302 + 687 = 100989
Step 148: 100989 + 687 = 101676
Step 149: 101676 + 687 = 102363
Step 150: 102363 + 687 = 103050
Step 151: 103050 + 687 = 103737
Step 152: 103737 + 687 = 104424
Step 153: 104424 + 687 = 105111
Step 154: 105111 + 687 = 105798
Step 155: 105798 + 687 = 106485
Step 156: 106485 + 687 = 107172
Step 157: 107172 + 687 = 107859
Step 158: 107859 + 687 = 108546
Step 159: 108546 + 687 = 109233
Step 160: 109233 + 687 = 109920
Step 161: 109920 + 687 = 110607
Step 162: 110607 + 687 = 111294
Step 163: 111294 + 687 = 111981
Step 164: 111981 + 687 = 112668
Step 165: 112668 + 687 = 113355
Step 166: 113355 + 687 = 114042
Step 167: 114042 + 687 = 114729
Step 168: 114729 + 687 = 115416
Step 169: 115416 + 687 = 116103
Step 170: 116103 + 687 = 116790
Step 171: 116790 + 687 = 117477
Step 172: 117477 + 687 = 118164
Step 173: 118164 + 687 = 118851
Step 174: 118851 + 687 = 119538
Step 175: 119538 + 687 = 120225
Step 176: 120225 + 687 = 120912
Step 177: 120912 + 687 = 121599
Step 178: 121599 + 687 = 122286
Step 179: 122286 + 687 = 122973
Step 180: 122973 + 687 = 123660
Step 181: 123660 + 687 = 124347
Step 182: 124347 + 687 = 125034
Step 183: 125034 + 687 = 125721
Step 184: 125721 + 687 = 126408
Step 185: 126408 + 687 = 127095
Step 186: 127095 + 687 = 127782
Step 187: 127782 + 687 = 128469
Step 188: 128469 + 687 = 129156

So, 687*188 = 129156