OK, let's crack this. We're given 56 and our task is to multiply it by 84. Essentially, we'll be adding 56 to itself 84 times.
Step 1: 0 + 56 = 56
Step 2: 56 + 56 = 112
Step 3: 112 + 56 = 168
Step 4: 168 + 56 = 224
Step 5: 224 + 56 = 280
Step 6: 280 + 56 = 336
Step 7: 336 + 56 = 392
Step 8: 392 + 56 = 448
Step 9: 448 + 56 = 504
Step 10: 504 + 56 = 560
Step 11: 560 + 56 = 616
Step 12: 616 + 56 = 672
Step 13: 672 + 56 = 728
Step 14: 728 + 56 = 784
Step 15: 784 + 56 = 840
Step 16: 840 + 56 = 896
Step 17: 896 + 56 = 952
Step 18: 952 + 56 = 1008
Step 19: 1008 + 56 = 1064
Step 20: 1064 + 56 = 1120
Step 21: 1120 + 56 = 1176
Step 22: 1176 + 56 = 1232
Step 23: 1232 + 56 = 1288
Step 24: 1288 + 56 = 1344
Step 25: 1344 + 56 = 1400
Step 26: 1400 + 56 = 1456
Step 27: 1456 + 56 = 1512
Step 28: 1512 + 56 = 1568
Step 29: 1568 + 56 = 1624
Step 30: 1624 + 56 = 1680
Step 31: 1680 + 56 = 1736
Step 32: 1736 + 56 = 1792
Step 33: 1792 + 56 = 1848
Step 34: 1848 + 56 = 1904
Step 35: 1904 + 56 = 1960
Step 36: 1960 + 56 = 2016
Step 37: 2016 + 56 = 2072
Step 38: 2072 + 56 = 2128
Step 39: 2128 + 56 = 2184
Step 40: 2184 + 56 = 2240
Step 41: 2240 + 56 = 2296
Step 42: 2296 + 56 = 2352
Step 43: 2352 + 56 = 2408
Step 44: 2408 + 56 = 2464
Step 45: 2464 + 56 = 2520
Step 46: 2520 + 56 = 2576
Step 47: 2576 + 56 = 2632
Step 48: 2632 + 56 = 2688
Step 49: 2688 + 56 = 2744
Step 50: 2744 + 56 = 2800
Step 51: 2800 + 56 = 2856
Step 52: 2856 + 56 = 2912
Step 53: 2912 + 56 = 2968
Step 54: 2968 + 56 = 3024
Step 55: 3024 + 56 = 3080
Step 56: 3080 + 56 = 3136
Step 57: 3136 + 56 = 3192
Step 58: 3192 + 56 = 3248
Step 59: 3248 + 56 = 3304
Step 60: 3304 + 56 = 3360
Step 61: 3360 + 56 = 3416
Step 62: 3416 + 56 = 3472
Step 63: 3472 + 56 = 3528
Step 64: 3528 + 56 = 3584
Step 65: 3584 + 56 = 3640
Step 66: 3640 + 56 = 3696
Step 67: 3696 + 56 = 3752
Step 68: 3752 + 56 = 3808
Step 69: 3808 + 56 = 3864
Step 70: 3864 + 56 = 3920
Step 71: 3920 + 56 = 3976
Step 72: 3976 + 56 = 4032
Step 73: 4032 + 56 = 4088
Step 74: 4088 + 56 = 4144
Step 75: 4144 + 56 = 4200
Step 76: 4200 + 56 = 4256
Step 77: 4256 + 56 = 4312
Step 78: 4312 + 56 = 4368
Step 79: 4368 + 56 = 4424
Step 80: 4424 + 56 = 4480
Step 81: 4480 + 56 = 4536
Step 82: 4536 + 56 = 4592
Step 83: 4592 + 56 = 4648
Step 84: 4648 + 56 = 4704

So, 56*84 = 4704