Alright, let's work through 8039 times 5413 step by step
8039 × 5413 = 5413 × (8039)
+ 5413 × 9 that equals 48717
+ 5413 × 30 resulting in 162390
+ 5413 × 000 what gives us 0
+ 5413 × 8000 yielding 43304000

= 43515107
