No problem, we've got 4286 and 4392 to multiply
4286 × 4392 = 4392 × (4286)
+ 4392 × 6 what gives us 26352
+ 4392 × 80 that is equal 351360
+ 4392 × 200 what gives us 878400
+ 4392 × 4000 that is equal 17568000

= 18824112
