OK, let's crack this. We're given 765 and our task is to multiply it by 11. Essentially, we'll be adding 765 to itself 11 times.
Step 1: 0 + 765 = 765
Step 2: 765 + 765 = 1530
Step 3: 1530 + 765 = 2295
Step 4: 2295 + 765 = 3060
Step 5: 3060 + 765 = 3825
Step 6: 3825 + 765 = 4590
Step 7: 4590 + 765 = 5355
Step 8: 5355 + 765 = 6120
Step 9: 6120 + 765 = 6885
Step 10: 6885 + 765 = 7650
Step 11: 7650 + 765 = 8415

So, 765*11 = 8415