Alright, let's work through 4007 times 6199 step by step
4007 × 6199 = 6199 × (4007)
+ 6199 × 7 yielding 43393
+ 6199 × 00 yielding 0
+ 6199 × 000 yielding 0
+ 6199 × 4000 that results in 24796000

= 24839393
