Alright, let's solve this math problem step by step. First, we have the number 104. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 84. So, we're going to take the number 104 and add it to itself 84 times.
Step 1: 0 + 104 = 104
Step 2: 104 + 104 = 208
Step 3: 208 + 104 = 312
Step 4: 312 + 104 = 416
Step 5: 416 + 104 = 520
Step 6: 520 + 104 = 624
Step 7: 624 + 104 = 728
Step 8: 728 + 104 = 832
Step 9: 832 + 104 = 936
Step 10: 936 + 104 = 1040
Step 11: 1040 + 104 = 1144
Step 12: 1144 + 104 = 1248
Step 13: 1248 + 104 = 1352
Step 14: 1352 + 104 = 1456
Step 15: 1456 + 104 = 1560
Step 16: 1560 + 104 = 1664
Step 17: 1664 + 104 = 1768
Step 18: 1768 + 104 = 1872
Step 19: 1872 + 104 = 1976
Step 20: 1976 + 104 = 2080
Step 21: 2080 + 104 = 2184
Step 22: 2184 + 104 = 2288
Step 23: 2288 + 104 = 2392
Step 24: 2392 + 104 = 2496
Step 25: 2496 + 104 = 2600
Step 26: 2600 + 104 = 2704
Step 27: 2704 + 104 = 2808
Step 28: 2808 + 104 = 2912
Step 29: 2912 + 104 = 3016
Step 30: 3016 + 104 = 3120
Step 31: 3120 + 104 = 3224
Step 32: 3224 + 104 = 3328
Step 33: 3328 + 104 = 3432
Step 34: 3432 + 104 = 3536
Step 35: 3536 + 104 = 3640
Step 36: 3640 + 104 = 3744
Step 37: 3744 + 104 = 3848
Step 38: 3848 + 104 = 3952
Step 39: 3952 + 104 = 4056
Step 40: 4056 + 104 = 4160
Step 41: 4160 + 104 = 4264
Step 42: 4264 + 104 = 4368
Step 43: 4368 + 104 = 4472
Step 44: 4472 + 104 = 4576
Step 45: 4576 + 104 = 4680
Step 46: 4680 + 104 = 4784
Step 47: 4784 + 104 = 4888
Step 48: 4888 + 104 = 4992
Step 49: 4992 + 104 = 5096
Step 50: 5096 + 104 = 5200
Step 51: 5200 + 104 = 5304
Step 52: 5304 + 104 = 5408
Step 53: 5408 + 104 = 5512
Step 54: 5512 + 104 = 5616
Step 55: 5616 + 104 = 5720
Step 56: 5720 + 104 = 5824
Step 57: 5824 + 104 = 5928
Step 58: 5928 + 104 = 6032
Step 59: 6032 + 104 = 6136
Step 60: 6136 + 104 = 6240
Step 61: 6240 + 104 = 6344
Step 62: 6344 + 104 = 6448
Step 63: 6448 + 104 = 6552
Step 64: 6552 + 104 = 6656
Step 65: 6656 + 104 = 6760
Step 66: 6760 + 104 = 6864
Step 67: 6864 + 104 = 6968
Step 68: 6968 + 104 = 7072
Step 69: 7072 + 104 = 7176
Step 70: 7176 + 104 = 7280
Step 71: 7280 + 104 = 7384
Step 72: 7384 + 104 = 7488
Step 73: 7488 + 104 = 7592
Step 74: 7592 + 104 = 7696
Step 75: 7696 + 104 = 7800
Step 76: 7800 + 104 = 7904
Step 77: 7904 + 104 = 8008
Step 78: 8008 + 104 = 8112
Step 79: 8112 + 104 = 8216
Step 80: 8216 + 104 = 8320
Step 81: 8320 + 104 = 8424
Step 82: 8424 + 104 = 8528
Step 83: 8528 + 104 = 8632
Step 84: 8632 + 104 = 8736

So, 104*84 = 8736