OK, let's crack this. We're given 351 and our task is to multiply it by 192. Essentially, we'll be adding 351 to itself 192 times.
Step 1: 0 + 351 = 351
Step 2: 351 + 351 = 702
Step 3: 702 + 351 = 1053
Step 4: 1053 + 351 = 1404
Step 5: 1404 + 351 = 1755
Step 6: 1755 + 351 = 2106
Step 7: 2106 + 351 = 2457
Step 8: 2457 + 351 = 2808
Step 9: 2808 + 351 = 3159
Step 10: 3159 + 351 = 3510
Step 11: 3510 + 351 = 3861
Step 12: 3861 + 351 = 4212
Step 13: 4212 + 351 = 4563
Step 14: 4563 + 351 = 4914
Step 15: 4914 + 351 = 5265
Step 16: 5265 + 351 = 5616
Step 17: 5616 + 351 = 5967
Step 18: 5967 + 351 = 6318
Step 19: 6318 + 351 = 6669
Step 20: 6669 + 351 = 7020
Step 21: 7020 + 351 = 7371
Step 22: 7371 + 351 = 7722
Step 23: 7722 + 351 = 8073
Step 24: 8073 + 351 = 8424
Step 25: 8424 + 351 = 8775
Step 26: 8775 + 351 = 9126
Step 27: 9126 + 351 = 9477
Step 28: 9477 + 351 = 9828
Step 29: 9828 + 351 = 10179
Step 30: 10179 + 351 = 10530
Step 31: 10530 + 351 = 10881
Step 32: 10881 + 351 = 11232
Step 33: 11232 + 351 = 11583
Step 34: 11583 + 351 = 11934
Step 35: 11934 + 351 = 12285
Step 36: 12285 + 351 = 12636
Step 37: 12636 + 351 = 12987
Step 38: 12987 + 351 = 13338
Step 39: 13338 + 351 = 13689
Step 40: 13689 + 351 = 14040
Step 41: 14040 + 351 = 14391
Step 42: 14391 + 351 = 14742
Step 43: 14742 + 351 = 15093
Step 44: 15093 + 351 = 15444
Step 45: 15444 + 351 = 15795
Step 46: 15795 + 351 = 16146
Step 47: 16146 + 351 = 16497
Step 48: 16497 + 351 = 16848
Step 49: 16848 + 351 = 17199
Step 50: 17199 + 351 = 17550
Step 51: 17550 + 351 = 17901
Step 52: 17901 + 351 = 18252
Step 53: 18252 + 351 = 18603
Step 54: 18603 + 351 = 18954
Step 55: 18954 + 351 = 19305
Step 56: 19305 + 351 = 19656
Step 57: 19656 + 351 = 20007
Step 58: 20007 + 351 = 20358
Step 59: 20358 + 351 = 20709
Step 60: 20709 + 351 = 21060
Step 61: 21060 + 351 = 21411
Step 62: 21411 + 351 = 21762
Step 63: 21762 + 351 = 22113
Step 64: 22113 + 351 = 22464
Step 65: 22464 + 351 = 22815
Step 66: 22815 + 351 = 23166
Step 67: 23166 + 351 = 23517
Step 68: 23517 + 351 = 23868
Step 69: 23868 + 351 = 24219
Step 70: 24219 + 351 = 24570
Step 71: 24570 + 351 = 24921
Step 72: 24921 + 351 = 25272
Step 73: 25272 + 351 = 25623
Step 74: 25623 + 351 = 25974
Step 75: 25974 + 351 = 26325
Step 76: 26325 + 351 = 26676
Step 77: 26676 + 351 = 27027
Step 78: 27027 + 351 = 27378
Step 79: 27378 + 351 = 27729
Step 80: 27729 + 351 = 28080
Step 81: 28080 + 351 = 28431
Step 82: 28431 + 351 = 28782
Step 83: 28782 + 351 = 29133
Step 84: 29133 + 351 = 29484
Step 85: 29484 + 351 = 29835
Step 86: 29835 + 351 = 30186
Step 87: 30186 + 351 = 30537
Step 88: 30537 + 351 = 30888
Step 89: 30888 + 351 = 31239
Step 90: 31239 + 351 = 31590
Step 91: 31590 + 351 = 31941
Step 92: 31941 + 351 = 32292
Step 93: 32292 + 351 = 32643
Step 94: 32643 + 351 = 32994
Step 95: 32994 + 351 = 33345
Step 96: 33345 + 351 = 33696
Step 97: 33696 + 351 = 34047
Step 98: 34047 + 351 = 34398
Step 99: 34398 + 351 = 34749
Step 100: 34749 + 351 = 35100
Step 101: 35100 + 351 = 35451
Step 102: 35451 + 351 = 35802
Step 103: 35802 + 351 = 36153
Step 104: 36153 + 351 = 36504
Step 105: 36504 + 351 = 36855
Step 106: 36855 + 351 = 37206
Step 107: 37206 + 351 = 37557
Step 108: 37557 + 351 = 37908
Step 109: 37908 + 351 = 38259
Step 110: 38259 + 351 = 38610
Step 111: 38610 + 351 = 38961
Step 112: 38961 + 351 = 39312
Step 113: 39312 + 351 = 39663
Step 114: 39663 + 351 = 40014
Step 115: 40014 + 351 = 40365
Step 116: 40365 + 351 = 40716
Step 117: 40716 + 351 = 41067
Step 118: 41067 + 351 = 41418
Step 119: 41418 + 351 = 41769
Step 120: 41769 + 351 = 42120
Step 121: 42120 + 351 = 42471
Step 122: 42471 + 351 = 42822
Step 123: 42822 + 351 = 43173
Step 124: 43173 + 351 = 43524
Step 125: 43524 + 351 = 43875
Step 126: 43875 + 351 = 44226
Step 127: 44226 + 351 = 44577
Step 128: 44577 + 351 = 44928
Step 129: 44928 + 351 = 45279
Step 130: 45279 + 351 = 45630
Step 131: 45630 + 351 = 45981
Step 132: 45981 + 351 = 46332
Step 133: 46332 + 351 = 46683
Step 134: 46683 + 351 = 47034
Step 135: 47034 + 351 = 47385
Step 136: 47385 + 351 = 47736
Step 137: 47736 + 351 = 48087
Step 138: 48087 + 351 = 48438
Step 139: 48438 + 351 = 48789
Step 140: 48789 + 351 = 49140
Step 141: 49140 + 351 = 49491
Step 142: 49491 + 351 = 49842
Step 143: 49842 + 351 = 50193
Step 144: 50193 + 351 = 50544
Step 145: 50544 + 351 = 50895
Step 146: 50895 + 351 = 51246
Step 147: 51246 + 351 = 51597
Step 148: 51597 + 351 = 51948
Step 149: 51948 + 351 = 52299
Step 150: 52299 + 351 = 52650
Step 151: 52650 + 351 = 53001
Step 152: 53001 + 351 = 53352
Step 153: 53352 + 351 = 53703
Step 154: 53703 + 351 = 54054
Step 155: 54054 + 351 = 54405
Step 156: 54405 + 351 = 54756
Step 157: 54756 + 351 = 55107
Step 158: 55107 + 351 = 55458
Step 159: 55458 + 351 = 55809
Step 160: 55809 + 351 = 56160
Step 161: 56160 + 351 = 56511
Step 162: 56511 + 351 = 56862
Step 163: 56862 + 351 = 57213
Step 164: 57213 + 351 = 57564
Step 165: 57564 + 351 = 57915
Step 166: 57915 + 351 = 58266
Step 167: 58266 + 351 = 58617
Step 168: 58617 + 351 = 58968
Step 169: 58968 + 351 = 59319
Step 170: 59319 + 351 = 59670
Step 171: 59670 + 351 = 60021
Step 172: 60021 + 351 = 60372
Step 173: 60372 + 351 = 60723
Step 174: 60723 + 351 = 61074
Step 175: 61074 + 351 = 61425
Step 176: 61425 + 351 = 61776
Step 177: 61776 + 351 = 62127
Step 178: 62127 + 351 = 62478
Step 179: 62478 + 351 = 62829
Step 180: 62829 + 351 = 63180
Step 181: 63180 + 351 = 63531
Step 182: 63531 + 351 = 63882
Step 183: 63882 + 351 = 64233
Step 184: 64233 + 351 = 64584
Step 185: 64584 + 351 = 64935
Step 186: 64935 + 351 = 65286
Step 187: 65286 + 351 = 65637
Step 188: 65637 + 351 = 65988
Step 189: 65988 + 351 = 66339
Step 190: 66339 + 351 = 66690
Step 191: 66690 + 351 = 67041
Step 192: 67041 + 351 = 67392

So, 351*192 = 67392