Let's roll up our sleeves and solve this. We have 679 and we're going to multiply it by 16, essentially adding 679 to itself 16 times.
Step 1: 0 + 679 = 679
Step 2: 679 + 679 = 1358
Step 3: 1358 + 679 = 2037
Step 4: 2037 + 679 = 2716
Step 5: 2716 + 679 = 3395
Step 6: 3395 + 679 = 4074
Step 7: 4074 + 679 = 4753
Step 8: 4753 + 679 = 5432
Step 9: 5432 + 679 = 6111
Step 10: 6111 + 679 = 6790
Step 11: 6790 + 679 = 7469
Step 12: 7469 + 679 = 8148
Step 13: 8148 + 679 = 8827
Step 14: 8827 + 679 = 9506
Step 15: 9506 + 679 = 10185
Step 16: 10185 + 679 = 10864

So, 679*16 = 10864