Alright, let's work through 4199 times 4845 step by step
4199 × 4845 = 4845 × (4199)
+ 4845 × 9 which equals 43605
+ 4845 × 90 producing 436050
+ 4845 × 100 yielding 484500
+ 4845 × 4000 producing 19380000

= 20344155
