OK, let's work through this together. We're starting with 67 and we're going to multiply it by 104, which means we add 67 to itself 104 times.
Step 1: 0 + 67 = 67
Step 2: 67 + 67 = 134
Step 3: 134 + 67 = 201
Step 4: 201 + 67 = 268
Step 5: 268 + 67 = 335
Step 6: 335 + 67 = 402
Step 7: 402 + 67 = 469
Step 8: 469 + 67 = 536
Step 9: 536 + 67 = 603
Step 10: 603 + 67 = 670
Step 11: 670 + 67 = 737
Step 12: 737 + 67 = 804
Step 13: 804 + 67 = 871
Step 14: 871 + 67 = 938
Step 15: 938 + 67 = 1005
Step 16: 1005 + 67 = 1072
Step 17: 1072 + 67 = 1139
Step 18: 1139 + 67 = 1206
Step 19: 1206 + 67 = 1273
Step 20: 1273 + 67 = 1340
Step 21: 1340 + 67 = 1407
Step 22: 1407 + 67 = 1474
Step 23: 1474 + 67 = 1541
Step 24: 1541 + 67 = 1608
Step 25: 1608 + 67 = 1675
Step 26: 1675 + 67 = 1742
Step 27: 1742 + 67 = 1809
Step 28: 1809 + 67 = 1876
Step 29: 1876 + 67 = 1943
Step 30: 1943 + 67 = 2010
Step 31: 2010 + 67 = 2077
Step 32: 2077 + 67 = 2144
Step 33: 2144 + 67 = 2211
Step 34: 2211 + 67 = 2278
Step 35: 2278 + 67 = 2345
Step 36: 2345 + 67 = 2412
Step 37: 2412 + 67 = 2479
Step 38: 2479 + 67 = 2546
Step 39: 2546 + 67 = 2613
Step 40: 2613 + 67 = 2680
Step 41: 2680 + 67 = 2747
Step 42: 2747 + 67 = 2814
Step 43: 2814 + 67 = 2881
Step 44: 2881 + 67 = 2948
Step 45: 2948 + 67 = 3015
Step 46: 3015 + 67 = 3082
Step 47: 3082 + 67 = 3149
Step 48: 3149 + 67 = 3216
Step 49: 3216 + 67 = 3283
Step 50: 3283 + 67 = 3350
Step 51: 3350 + 67 = 3417
Step 52: 3417 + 67 = 3484
Step 53: 3484 + 67 = 3551
Step 54: 3551 + 67 = 3618
Step 55: 3618 + 67 = 3685
Step 56: 3685 + 67 = 3752
Step 57: 3752 + 67 = 3819
Step 58: 3819 + 67 = 3886
Step 59: 3886 + 67 = 3953
Step 60: 3953 + 67 = 4020
Step 61: 4020 + 67 = 4087
Step 62: 4087 + 67 = 4154
Step 63: 4154 + 67 = 4221
Step 64: 4221 + 67 = 4288
Step 65: 4288 + 67 = 4355
Step 66: 4355 + 67 = 4422
Step 67: 4422 + 67 = 4489
Step 68: 4489 + 67 = 4556
Step 69: 4556 + 67 = 4623
Step 70: 4623 + 67 = 4690
Step 71: 4690 + 67 = 4757
Step 72: 4757 + 67 = 4824
Step 73: 4824 + 67 = 4891
Step 74: 4891 + 67 = 4958
Step 75: 4958 + 67 = 5025
Step 76: 5025 + 67 = 5092
Step 77: 5092 + 67 = 5159
Step 78: 5159 + 67 = 5226
Step 79: 5226 + 67 = 5293
Step 80: 5293 + 67 = 5360
Step 81: 5360 + 67 = 5427
Step 82: 5427 + 67 = 5494
Step 83: 5494 + 67 = 5561
Step 84: 5561 + 67 = 5628
Step 85: 5628 + 67 = 5695
Step 86: 5695 + 67 = 5762
Step 87: 5762 + 67 = 5829
Step 88: 5829 + 67 = 5896
Step 89: 5896 + 67 = 5963
Step 90: 5963 + 67 = 6030
Step 91: 6030 + 67 = 6097
Step 92: 6097 + 67 = 6164
Step 93: 6164 + 67 = 6231
Step 94: 6231 + 67 = 6298
Step 95: 6298 + 67 = 6365
Step 96: 6365 + 67 = 6432
Step 97: 6432 + 67 = 6499
Step 98: 6499 + 67 = 6566
Step 99: 6566 + 67 = 6633
Step 100: 6633 + 67 = 6700
Step 101: 6700 + 67 = 6767
Step 102: 6767 + 67 = 6834
Step 103: 6834 + 67 = 6901
Step 104: 6901 + 67 = 6968

So, 67*104 = 6968