No problem, we've got 2112 and 7980 to multiply
2112 × 7980 = 7980 × (2112)
+ 7980 × 2 giving us 15960
+ 7980 × 10 which equals 79800
+ 7980 × 100 yielding 798000
+ 7980 × 2000 producing 15960000

= 16853760
