Alright, let's work through 4039 times 1436 step by step
4039 × 1436 = 1436 × (4039)
+ 1436 × 9 which equals 12924
+ 1436 × 30 yielding 43080
+ 1436 × 000 which equals 0
+ 1436 × 4000 giving us 5744000

= 5800004
