Let's get this math done. We have 307 and we're going to multiply it by 27. This is the same as taking 307 and adding it to itself 27 times.
Step 1: 0 + 307 = 307
Step 2: 307 + 307 = 614
Step 3: 614 + 307 = 921
Step 4: 921 + 307 = 1228
Step 5: 1228 + 307 = 1535
Step 6: 1535 + 307 = 1842
Step 7: 1842 + 307 = 2149
Step 8: 2149 + 307 = 2456
Step 9: 2456 + 307 = 2763
Step 10: 2763 + 307 = 3070
Step 11: 3070 + 307 = 3377
Step 12: 3377 + 307 = 3684
Step 13: 3684 + 307 = 3991
Step 14: 3991 + 307 = 4298
Step 15: 4298 + 307 = 4605
Step 16: 4605 + 307 = 4912
Step 17: 4912 + 307 = 5219
Step 18: 5219 + 307 = 5526
Step 19: 5526 + 307 = 5833
Step 20: 5833 + 307 = 6140
Step 21: 6140 + 307 = 6447
Step 22: 6447 + 307 = 6754
Step 23: 6754 + 307 = 7061
Step 24: 7061 + 307 = 7368
Step 25: 7368 + 307 = 7675
Step 26: 7675 + 307 = 7982
Step 27: 7982 + 307 = 8289

So, 307*27 = 8289