OK, let's work through this together. We're starting with 766 and we're going to multiply it by 11, which means we add 766 to itself 11 times.
Step 1: 0 + 766 = 766
Step 2: 766 + 766 = 1532
Step 3: 1532 + 766 = 2298
Step 4: 2298 + 766 = 3064
Step 5: 3064 + 766 = 3830
Step 6: 3830 + 766 = 4596
Step 7: 4596 + 766 = 5362
Step 8: 5362 + 766 = 6128
Step 9: 6128 + 766 = 6894
Step 10: 6894 + 766 = 7660
Step 11: 7660 + 766 = 8426

So, 766*11 = 8426