Alright, let's solve this math problem step by step. First, we have the number 404. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 104. So, we're going to take the number 404 and add it to itself 104 times.
Step 1: 0 + 404 = 404
Step 2: 404 + 404 = 808
Step 3: 808 + 404 = 1212
Step 4: 1212 + 404 = 1616
Step 5: 1616 + 404 = 2020
Step 6: 2020 + 404 = 2424
Step 7: 2424 + 404 = 2828
Step 8: 2828 + 404 = 3232
Step 9: 3232 + 404 = 3636
Step 10: 3636 + 404 = 4040
Step 11: 4040 + 404 = 4444
Step 12: 4444 + 404 = 4848
Step 13: 4848 + 404 = 5252
Step 14: 5252 + 404 = 5656
Step 15: 5656 + 404 = 6060
Step 16: 6060 + 404 = 6464
Step 17: 6464 + 404 = 6868
Step 18: 6868 + 404 = 7272
Step 19: 7272 + 404 = 7676
Step 20: 7676 + 404 = 8080
Step 21: 8080 + 404 = 8484
Step 22: 8484 + 404 = 8888
Step 23: 8888 + 404 = 9292
Step 24: 9292 + 404 = 9696
Step 25: 9696 + 404 = 10100
Step 26: 10100 + 404 = 10504
Step 27: 10504 + 404 = 10908
Step 28: 10908 + 404 = 11312
Step 29: 11312 + 404 = 11716
Step 30: 11716 + 404 = 12120
Step 31: 12120 + 404 = 12524
Step 32: 12524 + 404 = 12928
Step 33: 12928 + 404 = 13332
Step 34: 13332 + 404 = 13736
Step 35: 13736 + 404 = 14140
Step 36: 14140 + 404 = 14544
Step 37: 14544 + 404 = 14948
Step 38: 14948 + 404 = 15352
Step 39: 15352 + 404 = 15756
Step 40: 15756 + 404 = 16160
Step 41: 16160 + 404 = 16564
Step 42: 16564 + 404 = 16968
Step 43: 16968 + 404 = 17372
Step 44: 17372 + 404 = 17776
Step 45: 17776 + 404 = 18180
Step 46: 18180 + 404 = 18584
Step 47: 18584 + 404 = 18988
Step 48: 18988 + 404 = 19392
Step 49: 19392 + 404 = 19796
Step 50: 19796 + 404 = 20200
Step 51: 20200 + 404 = 20604
Step 52: 20604 + 404 = 21008
Step 53: 21008 + 404 = 21412
Step 54: 21412 + 404 = 21816
Step 55: 21816 + 404 = 22220
Step 56: 22220 + 404 = 22624
Step 57: 22624 + 404 = 23028
Step 58: 23028 + 404 = 23432
Step 59: 23432 + 404 = 23836
Step 60: 23836 + 404 = 24240
Step 61: 24240 + 404 = 24644
Step 62: 24644 + 404 = 25048
Step 63: 25048 + 404 = 25452
Step 64: 25452 + 404 = 25856
Step 65: 25856 + 404 = 26260
Step 66: 26260 + 404 = 26664
Step 67: 26664 + 404 = 27068
Step 68: 27068 + 404 = 27472
Step 69: 27472 + 404 = 27876
Step 70: 27876 + 404 = 28280
Step 71: 28280 + 404 = 28684
Step 72: 28684 + 404 = 29088
Step 73: 29088 + 404 = 29492
Step 74: 29492 + 404 = 29896
Step 75: 29896 + 404 = 30300
Step 76: 30300 + 404 = 30704
Step 77: 30704 + 404 = 31108
Step 78: 31108 + 404 = 31512
Step 79: 31512 + 404 = 31916
Step 80: 31916 + 404 = 32320
Step 81: 32320 + 404 = 32724
Step 82: 32724 + 404 = 33128
Step 83: 33128 + 404 = 33532
Step 84: 33532 + 404 = 33936
Step 85: 33936 + 404 = 34340
Step 86: 34340 + 404 = 34744
Step 87: 34744 + 404 = 35148
Step 88: 35148 + 404 = 35552
Step 89: 35552 + 404 = 35956
Step 90: 35956 + 404 = 36360
Step 91: 36360 + 404 = 36764
Step 92: 36764 + 404 = 37168
Step 93: 37168 + 404 = 37572
Step 94: 37572 + 404 = 37976
Step 95: 37976 + 404 = 38380
Step 96: 38380 + 404 = 38784
Step 97: 38784 + 404 = 39188
Step 98: 39188 + 404 = 39592
Step 99: 39592 + 404 = 39996
Step 100: 39996 + 404 = 40400
Step 101: 40400 + 404 = 40804
Step 102: 40804 + 404 = 41208
Step 103: 41208 + 404 = 41612
Step 104: 41612 + 404 = 42016

So, 404*104 = 42016