Alright, let's solve this math problem step by step. First, we have the number 539. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 27. So, we're going to take the number 539 and add it to itself 27 times.
Step 1: 0 + 539 = 539
Step 2: 539 + 539 = 1078
Step 3: 1078 + 539 = 1617
Step 4: 1617 + 539 = 2156
Step 5: 2156 + 539 = 2695
Step 6: 2695 + 539 = 3234
Step 7: 3234 + 539 = 3773
Step 8: 3773 + 539 = 4312
Step 9: 4312 + 539 = 4851
Step 10: 4851 + 539 = 5390
Step 11: 5390 + 539 = 5929
Step 12: 5929 + 539 = 6468
Step 13: 6468 + 539 = 7007
Step 14: 7007 + 539 = 7546
Step 15: 7546 + 539 = 8085
Step 16: 8085 + 539 = 8624
Step 17: 8624 + 539 = 9163
Step 18: 9163 + 539 = 9702
Step 19: 9702 + 539 = 10241
Step 20: 10241 + 539 = 10780
Step 21: 10780 + 539 = 11319
Step 22: 11319 + 539 = 11858
Step 23: 11858 + 539 = 12397
Step 24: 12397 + 539 = 12936
Step 25: 12936 + 539 = 13475
Step 26: 13475 + 539 = 14014
Step 27: 14014 + 539 = 14553

So, 539*27 = 14553