Let's roll up our sleeves and solve this. We have 630 and we're going to multiply it by 11, essentially adding 630 to itself 11 times.
Step 1: 0 + 630 = 630
Step 2: 630 + 630 = 1260
Step 3: 1260 + 630 = 1890
Step 4: 1890 + 630 = 2520
Step 5: 2520 + 630 = 3150
Step 6: 3150 + 630 = 3780
Step 7: 3780 + 630 = 4410
Step 8: 4410 + 630 = 5040
Step 9: 5040 + 630 = 5670
Step 10: 5670 + 630 = 6300
Step 11: 6300 + 630 = 6930

So, 630*11 = 6930