Alright, let's work through 4239 times 5200 step by step
4239 × 5200 = 5200 × (4239)
+ 5200 × 9 resulting in 46800
+ 5200 × 30 producing 156000
+ 5200 × 200 which equals 1040000
+ 5200 × 4000 resulting in 20800000

= 22042800
