OK, let's work through this together. We're starting with 773 and we're going to multiply it by 11, which means we add 773 to itself 11 times.
Step 1: 0 + 773 = 773
Step 2: 773 + 773 = 1546
Step 3: 1546 + 773 = 2319
Step 4: 2319 + 773 = 3092
Step 5: 3092 + 773 = 3865
Step 6: 3865 + 773 = 4638
Step 7: 4638 + 773 = 5411
Step 8: 5411 + 773 = 6184
Step 9: 6184 + 773 = 6957
Step 10: 6957 + 773 = 7730
Step 11: 7730 + 773 = 8503

So, 773*11 = 8503