Alright, let's solve this math problem step by step. First, we have the number 391. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 53. So, we're going to take the number 391 and add it to itself 53 times.
Step 1: 0 + 391 = 391
Step 2: 391 + 391 = 782
Step 3: 782 + 391 = 1173
Step 4: 1173 + 391 = 1564
Step 5: 1564 + 391 = 1955
Step 6: 1955 + 391 = 2346
Step 7: 2346 + 391 = 2737
Step 8: 2737 + 391 = 3128
Step 9: 3128 + 391 = 3519
Step 10: 3519 + 391 = 3910
Step 11: 3910 + 391 = 4301
Step 12: 4301 + 391 = 4692
Step 13: 4692 + 391 = 5083
Step 14: 5083 + 391 = 5474
Step 15: 5474 + 391 = 5865
Step 16: 5865 + 391 = 6256
Step 17: 6256 + 391 = 6647
Step 18: 6647 + 391 = 7038
Step 19: 7038 + 391 = 7429
Step 20: 7429 + 391 = 7820
Step 21: 7820 + 391 = 8211
Step 22: 8211 + 391 = 8602
Step 23: 8602 + 391 = 8993
Step 24: 8993 + 391 = 9384
Step 25: 9384 + 391 = 9775
Step 26: 9775 + 391 = 10166
Step 27: 10166 + 391 = 10557
Step 28: 10557 + 391 = 10948
Step 29: 10948 + 391 = 11339
Step 30: 11339 + 391 = 11730
Step 31: 11730 + 391 = 12121
Step 32: 12121 + 391 = 12512
Step 33: 12512 + 391 = 12903
Step 34: 12903 + 391 = 13294
Step 35: 13294 + 391 = 13685
Step 36: 13685 + 391 = 14076
Step 37: 14076 + 391 = 14467
Step 38: 14467 + 391 = 14858
Step 39: 14858 + 391 = 15249
Step 40: 15249 + 391 = 15640
Step 41: 15640 + 391 = 16031
Step 42: 16031 + 391 = 16422
Step 43: 16422 + 391 = 16813
Step 44: 16813 + 391 = 17204
Step 45: 17204 + 391 = 17595
Step 46: 17595 + 391 = 17986
Step 47: 17986 + 391 = 18377
Step 48: 18377 + 391 = 18768
Step 49: 18768 + 391 = 19159
Step 50: 19159 + 391 = 19550
Step 51: 19550 + 391 = 19941
Step 52: 19941 + 391 = 20332
Step 53: 20332 + 391 = 20723

So, 391*53 = 20723