Alright, let's work through 4552 times 3990 step by step
4552 × 3990 = 3990 × (4552)
+ 3990 × 2 that equals 7980
+ 3990 × 50 that equals 199500
+ 3990 × 500 resulting in 1995000
+ 3990 × 4000 that is equal 15960000

= 18162480
