Let's roll up our sleeves and solve this. We have 889 and we're going to multiply it by 16, essentially adding 889 to itself 16 times.
Step 1: 0 + 889 = 889
Step 2: 889 + 889 = 1778
Step 3: 1778 + 889 = 2667
Step 4: 2667 + 889 = 3556
Step 5: 3556 + 889 = 4445
Step 6: 4445 + 889 = 5334
Step 7: 5334 + 889 = 6223
Step 8: 6223 + 889 = 7112
Step 9: 7112 + 889 = 8001
Step 10: 8001 + 889 = 8890
Step 11: 8890 + 889 = 9779
Step 12: 9779 + 889 = 10668
Step 13: 10668 + 889 = 11557
Step 14: 11557 + 889 = 12446
Step 15: 12446 + 889 = 13335
Step 16: 13335 + 889 = 14224

So, 889*16 = 14224