Alright, let's solve this math problem step by step. First, we have the number 863. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 86. So, we're going to take the number 863 and add it to itself 86 times.
Step 1: 0 + 863 = 863
Step 2: 863 + 863 = 1726
Step 3: 1726 + 863 = 2589
Step 4: 2589 + 863 = 3452
Step 5: 3452 + 863 = 4315
Step 6: 4315 + 863 = 5178
Step 7: 5178 + 863 = 6041
Step 8: 6041 + 863 = 6904
Step 9: 6904 + 863 = 7767
Step 10: 7767 + 863 = 8630
Step 11: 8630 + 863 = 9493
Step 12: 9493 + 863 = 10356
Step 13: 10356 + 863 = 11219
Step 14: 11219 + 863 = 12082
Step 15: 12082 + 863 = 12945
Step 16: 12945 + 863 = 13808
Step 17: 13808 + 863 = 14671
Step 18: 14671 + 863 = 15534
Step 19: 15534 + 863 = 16397
Step 20: 16397 + 863 = 17260
Step 21: 17260 + 863 = 18123
Step 22: 18123 + 863 = 18986
Step 23: 18986 + 863 = 19849
Step 24: 19849 + 863 = 20712
Step 25: 20712 + 863 = 21575
Step 26: 21575 + 863 = 22438
Step 27: 22438 + 863 = 23301
Step 28: 23301 + 863 = 24164
Step 29: 24164 + 863 = 25027
Step 30: 25027 + 863 = 25890
Step 31: 25890 + 863 = 26753
Step 32: 26753 + 863 = 27616
Step 33: 27616 + 863 = 28479
Step 34: 28479 + 863 = 29342
Step 35: 29342 + 863 = 30205
Step 36: 30205 + 863 = 31068
Step 37: 31068 + 863 = 31931
Step 38: 31931 + 863 = 32794
Step 39: 32794 + 863 = 33657
Step 40: 33657 + 863 = 34520
Step 41: 34520 + 863 = 35383
Step 42: 35383 + 863 = 36246
Step 43: 36246 + 863 = 37109
Step 44: 37109 + 863 = 37972
Step 45: 37972 + 863 = 38835
Step 46: 38835 + 863 = 39698
Step 47: 39698 + 863 = 40561
Step 48: 40561 + 863 = 41424
Step 49: 41424 + 863 = 42287
Step 50: 42287 + 863 = 43150
Step 51: 43150 + 863 = 44013
Step 52: 44013 + 863 = 44876
Step 53: 44876 + 863 = 45739
Step 54: 45739 + 863 = 46602
Step 55: 46602 + 863 = 47465
Step 56: 47465 + 863 = 48328
Step 57: 48328 + 863 = 49191
Step 58: 49191 + 863 = 50054
Step 59: 50054 + 863 = 50917
Step 60: 50917 + 863 = 51780
Step 61: 51780 + 863 = 52643
Step 62: 52643 + 863 = 53506
Step 63: 53506 + 863 = 54369
Step 64: 54369 + 863 = 55232
Step 65: 55232 + 863 = 56095
Step 66: 56095 + 863 = 56958
Step 67: 56958 + 863 = 57821
Step 68: 57821 + 863 = 58684
Step 69: 58684 + 863 = 59547
Step 70: 59547 + 863 = 60410
Step 71: 60410 + 863 = 61273
Step 72: 61273 + 863 = 62136
Step 73: 62136 + 863 = 62999
Step 74: 62999 + 863 = 63862
Step 75: 63862 + 863 = 64725
Step 76: 64725 + 863 = 65588
Step 77: 65588 + 863 = 66451
Step 78: 66451 + 863 = 67314
Step 79: 67314 + 863 = 68177
Step 80: 68177 + 863 = 69040
Step 81: 69040 + 863 = 69903
Step 82: 69903 + 863 = 70766
Step 83: 70766 + 863 = 71629
Step 84: 71629 + 863 = 72492
Step 85: 72492 + 863 = 73355
Step 86: 73355 + 863 = 74218

So, 863*86 = 74218