Alright, let's work through 4190 times 4440 step by step
4190 × 4440 = 4440 × (4190)
+ 4440 × 0 that results in 0
+ 4440 × 90 what gives us 399600
+ 4440 × 100 that is equal 444000
+ 4440 × 4000 that is equal 17760000

= 18603600
