Let's roll up our sleeves and solve this. We have 546 and we're going to multiply it by 27, essentially adding 546 to itself 27 times.
Step 1: 0 + 546 = 546
Step 2: 546 + 546 = 1092
Step 3: 1092 + 546 = 1638
Step 4: 1638 + 546 = 2184
Step 5: 2184 + 546 = 2730
Step 6: 2730 + 546 = 3276
Step 7: 3276 + 546 = 3822
Step 8: 3822 + 546 = 4368
Step 9: 4368 + 546 = 4914
Step 10: 4914 + 546 = 5460
Step 11: 5460 + 546 = 6006
Step 12: 6006 + 546 = 6552
Step 13: 6552 + 546 = 7098
Step 14: 7098 + 546 = 7644
Step 15: 7644 + 546 = 8190
Step 16: 8190 + 546 = 8736
Step 17: 8736 + 546 = 9282
Step 18: 9282 + 546 = 9828
Step 19: 9828 + 546 = 10374
Step 20: 10374 + 546 = 10920
Step 21: 10920 + 546 = 11466
Step 22: 11466 + 546 = 12012
Step 23: 12012 + 546 = 12558
Step 24: 12558 + 546 = 13104
Step 25: 13104 + 546 = 13650
Step 26: 13650 + 546 = 14196
Step 27: 14196 + 546 = 14742

So, 546*27 = 14742