Alright, let's solve this math problem step by step. First, we have the number 764. 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 764 and add it to itself 27 times.
Step 1: 0 + 764 = 764
Step 2: 764 + 764 = 1528
Step 3: 1528 + 764 = 2292
Step 4: 2292 + 764 = 3056
Step 5: 3056 + 764 = 3820
Step 6: 3820 + 764 = 4584
Step 7: 4584 + 764 = 5348
Step 8: 5348 + 764 = 6112
Step 9: 6112 + 764 = 6876
Step 10: 6876 + 764 = 7640
Step 11: 7640 + 764 = 8404
Step 12: 8404 + 764 = 9168
Step 13: 9168 + 764 = 9932
Step 14: 9932 + 764 = 10696
Step 15: 10696 + 764 = 11460
Step 16: 11460 + 764 = 12224
Step 17: 12224 + 764 = 12988
Step 18: 12988 + 764 = 13752
Step 19: 13752 + 764 = 14516
Step 20: 14516 + 764 = 15280
Step 21: 15280 + 764 = 16044
Step 22: 16044 + 764 = 16808
Step 23: 16808 + 764 = 17572
Step 24: 17572 + 764 = 18336
Step 25: 18336 + 764 = 19100
Step 26: 19100 + 764 = 19864
Step 27: 19864 + 764 = 20628

So, 764*27 = 20628