No problem, we've got 3984 and 4475 to multiply
3984 × 4475 = 4475 × (3984)
+ 4475 × 4 that is equal 17900
+ 4475 × 80 that is equal 358000
+ 4475 × 900 resulting in 4027500
+ 4475 × 3000 yielding 13425000

= 17828400
