Alright, let's work through 4199 times 4512 step by step
4199 × 4512 = 4512 × (4199)
+ 4512 × 9 yielding 40608
+ 4512 × 90 which equals 406080
+ 4512 × 100 producing 451200
+ 4512 × 4000 yielding 18048000

= 18945888
