Let's roll up our sleeves and solve this. We have 459 and we're going to multiply it by 27, essentially adding 459 to itself 27 times.
Step 1: 0 + 459 = 459
Step 2: 459 + 459 = 918
Step 3: 918 + 459 = 1377
Step 4: 1377 + 459 = 1836
Step 5: 1836 + 459 = 2295
Step 6: 2295 + 459 = 2754
Step 7: 2754 + 459 = 3213
Step 8: 3213 + 459 = 3672
Step 9: 3672 + 459 = 4131
Step 10: 4131 + 459 = 4590
Step 11: 4590 + 459 = 5049
Step 12: 5049 + 459 = 5508
Step 13: 5508 + 459 = 5967
Step 14: 5967 + 459 = 6426
Step 15: 6426 + 459 = 6885
Step 16: 6885 + 459 = 7344
Step 17: 7344 + 459 = 7803
Step 18: 7803 + 459 = 8262
Step 19: 8262 + 459 = 8721
Step 20: 8721 + 459 = 9180
Step 21: 9180 + 459 = 9639
Step 22: 9639 + 459 = 10098
Step 23: 10098 + 459 = 10557
Step 24: 10557 + 459 = 11016
Step 25: 11016 + 459 = 11475
Step 26: 11475 + 459 = 11934
Step 27: 11934 + 459 = 12393

So, 459*27 = 12393