Sure thing, let's get straight to it. We start with 391 and we're going to multiply it by 60, which means adding 391 to itself 60 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
Step 54: 20723 + 391 = 21114
Step 55: 21114 + 391 = 21505
Step 56: 21505 + 391 = 21896
Step 57: 21896 + 391 = 22287
Step 58: 22287 + 391 = 22678
Step 59: 22678 + 391 = 23069
Step 60: 23069 + 391 = 23460

So, 391*60 = 23460