Let's roll up our sleeves and solve this. We have 348 and we're going to multiply it by 104, essentially adding 348 to itself 104 times.
Step 1: 0 + 348 = 348
Step 2: 348 + 348 = 696
Step 3: 696 + 348 = 1044
Step 4: 1044 + 348 = 1392
Step 5: 1392 + 348 = 1740
Step 6: 1740 + 348 = 2088
Step 7: 2088 + 348 = 2436
Step 8: 2436 + 348 = 2784
Step 9: 2784 + 348 = 3132
Step 10: 3132 + 348 = 3480
Step 11: 3480 + 348 = 3828
Step 12: 3828 + 348 = 4176
Step 13: 4176 + 348 = 4524
Step 14: 4524 + 348 = 4872
Step 15: 4872 + 348 = 5220
Step 16: 5220 + 348 = 5568
Step 17: 5568 + 348 = 5916
Step 18: 5916 + 348 = 6264
Step 19: 6264 + 348 = 6612
Step 20: 6612 + 348 = 6960
Step 21: 6960 + 348 = 7308
Step 22: 7308 + 348 = 7656
Step 23: 7656 + 348 = 8004
Step 24: 8004 + 348 = 8352
Step 25: 8352 + 348 = 8700
Step 26: 8700 + 348 = 9048
Step 27: 9048 + 348 = 9396
Step 28: 9396 + 348 = 9744
Step 29: 9744 + 348 = 10092
Step 30: 10092 + 348 = 10440
Step 31: 10440 + 348 = 10788
Step 32: 10788 + 348 = 11136
Step 33: 11136 + 348 = 11484
Step 34: 11484 + 348 = 11832
Step 35: 11832 + 348 = 12180
Step 36: 12180 + 348 = 12528
Step 37: 12528 + 348 = 12876
Step 38: 12876 + 348 = 13224
Step 39: 13224 + 348 = 13572
Step 40: 13572 + 348 = 13920
Step 41: 13920 + 348 = 14268
Step 42: 14268 + 348 = 14616
Step 43: 14616 + 348 = 14964
Step 44: 14964 + 348 = 15312
Step 45: 15312 + 348 = 15660
Step 46: 15660 + 348 = 16008
Step 47: 16008 + 348 = 16356
Step 48: 16356 + 348 = 16704
Step 49: 16704 + 348 = 17052
Step 50: 17052 + 348 = 17400
Step 51: 17400 + 348 = 17748
Step 52: 17748 + 348 = 18096
Step 53: 18096 + 348 = 18444
Step 54: 18444 + 348 = 18792
Step 55: 18792 + 348 = 19140
Step 56: 19140 + 348 = 19488
Step 57: 19488 + 348 = 19836
Step 58: 19836 + 348 = 20184
Step 59: 20184 + 348 = 20532
Step 60: 20532 + 348 = 20880
Step 61: 20880 + 348 = 21228
Step 62: 21228 + 348 = 21576
Step 63: 21576 + 348 = 21924
Step 64: 21924 + 348 = 22272
Step 65: 22272 + 348 = 22620
Step 66: 22620 + 348 = 22968
Step 67: 22968 + 348 = 23316
Step 68: 23316 + 348 = 23664
Step 69: 23664 + 348 = 24012
Step 70: 24012 + 348 = 24360
Step 71: 24360 + 348 = 24708
Step 72: 24708 + 348 = 25056
Step 73: 25056 + 348 = 25404
Step 74: 25404 + 348 = 25752
Step 75: 25752 + 348 = 26100
Step 76: 26100 + 348 = 26448
Step 77: 26448 + 348 = 26796
Step 78: 26796 + 348 = 27144
Step 79: 27144 + 348 = 27492
Step 80: 27492 + 348 = 27840
Step 81: 27840 + 348 = 28188
Step 82: 28188 + 348 = 28536
Step 83: 28536 + 348 = 28884
Step 84: 28884 + 348 = 29232
Step 85: 29232 + 348 = 29580
Step 86: 29580 + 348 = 29928
Step 87: 29928 + 348 = 30276
Step 88: 30276 + 348 = 30624
Step 89: 30624 + 348 = 30972
Step 90: 30972 + 348 = 31320
Step 91: 31320 + 348 = 31668
Step 92: 31668 + 348 = 32016
Step 93: 32016 + 348 = 32364
Step 94: 32364 + 348 = 32712
Step 95: 32712 + 348 = 33060
Step 96: 33060 + 348 = 33408
Step 97: 33408 + 348 = 33756
Step 98: 33756 + 348 = 34104
Step 99: 34104 + 348 = 34452
Step 100: 34452 + 348 = 34800
Step 101: 34800 + 348 = 35148
Step 102: 35148 + 348 = 35496
Step 103: 35496 + 348 = 35844
Step 104: 35844 + 348 = 36192

So, 348*104 = 36192