Alright, let's solve this math problem step by step. First, we have the number 337. 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 337 and add it to itself 86 times.
Step 1: 0 + 337 = 337
Step 2: 337 + 337 = 674
Step 3: 674 + 337 = 1011
Step 4: 1011 + 337 = 1348
Step 5: 1348 + 337 = 1685
Step 6: 1685 + 337 = 2022
Step 7: 2022 + 337 = 2359
Step 8: 2359 + 337 = 2696
Step 9: 2696 + 337 = 3033
Step 10: 3033 + 337 = 3370
Step 11: 3370 + 337 = 3707
Step 12: 3707 + 337 = 4044
Step 13: 4044 + 337 = 4381
Step 14: 4381 + 337 = 4718
Step 15: 4718 + 337 = 5055
Step 16: 5055 + 337 = 5392
Step 17: 5392 + 337 = 5729
Step 18: 5729 + 337 = 6066
Step 19: 6066 + 337 = 6403
Step 20: 6403 + 337 = 6740
Step 21: 6740 + 337 = 7077
Step 22: 7077 + 337 = 7414
Step 23: 7414 + 337 = 7751
Step 24: 7751 + 337 = 8088
Step 25: 8088 + 337 = 8425
Step 26: 8425 + 337 = 8762
Step 27: 8762 + 337 = 9099
Step 28: 9099 + 337 = 9436
Step 29: 9436 + 337 = 9773
Step 30: 9773 + 337 = 10110
Step 31: 10110 + 337 = 10447
Step 32: 10447 + 337 = 10784
Step 33: 10784 + 337 = 11121
Step 34: 11121 + 337 = 11458
Step 35: 11458 + 337 = 11795
Step 36: 11795 + 337 = 12132
Step 37: 12132 + 337 = 12469
Step 38: 12469 + 337 = 12806
Step 39: 12806 + 337 = 13143
Step 40: 13143 + 337 = 13480
Step 41: 13480 + 337 = 13817
Step 42: 13817 + 337 = 14154
Step 43: 14154 + 337 = 14491
Step 44: 14491 + 337 = 14828
Step 45: 14828 + 337 = 15165
Step 46: 15165 + 337 = 15502
Step 47: 15502 + 337 = 15839
Step 48: 15839 + 337 = 16176
Step 49: 16176 + 337 = 16513
Step 50: 16513 + 337 = 16850
Step 51: 16850 + 337 = 17187
Step 52: 17187 + 337 = 17524
Step 53: 17524 + 337 = 17861
Step 54: 17861 + 337 = 18198
Step 55: 18198 + 337 = 18535
Step 56: 18535 + 337 = 18872
Step 57: 18872 + 337 = 19209
Step 58: 19209 + 337 = 19546
Step 59: 19546 + 337 = 19883
Step 60: 19883 + 337 = 20220
Step 61: 20220 + 337 = 20557
Step 62: 20557 + 337 = 20894
Step 63: 20894 + 337 = 21231
Step 64: 21231 + 337 = 21568
Step 65: 21568 + 337 = 21905
Step 66: 21905 + 337 = 22242
Step 67: 22242 + 337 = 22579
Step 68: 22579 + 337 = 22916
Step 69: 22916 + 337 = 23253
Step 70: 23253 + 337 = 23590
Step 71: 23590 + 337 = 23927
Step 72: 23927 + 337 = 24264
Step 73: 24264 + 337 = 24601
Step 74: 24601 + 337 = 24938
Step 75: 24938 + 337 = 25275
Step 76: 25275 + 337 = 25612
Step 77: 25612 + 337 = 25949
Step 78: 25949 + 337 = 26286
Step 79: 26286 + 337 = 26623
Step 80: 26623 + 337 = 26960
Step 81: 26960 + 337 = 27297
Step 82: 27297 + 337 = 27634
Step 83: 27634 + 337 = 27971
Step 84: 27971 + 337 = 28308
Step 85: 28308 + 337 = 28645
Step 86: 28645 + 337 = 28982

So, 337*86 = 28982