Let's roll up our sleeves and solve this. We have 699 and we're going to multiply it by 10, essentially adding 699 to itself 10 times.
Step 1: 0 + 699 = 699
Step 2: 699 + 699 = 1398
Step 3: 1398 + 699 = 2097
Step 4: 2097 + 699 = 2796
Step 5: 2796 + 699 = 3495
Step 6: 3495 + 699 = 4194
Step 7: 4194 + 699 = 4893
Step 8: 4893 + 699 = 5592
Step 9: 5592 + 699 = 6291
Step 10: 6291 + 699 = 6990

So, 699*10 = 6990