Alright, let's work through 4039 times 8443 step by step
4039 × 8443 = 8443 × (4039)
+ 8443 × 9 that equals 75987
+ 8443 × 30 that equals 253290
+ 8443 × 000 which equals 0
+ 8443 × 4000 which equals 33772000

= 34101277
