Alright, let's work through 5399 times 4285 step by step
5399 × 4285 = 4285 × (5399)
+ 4285 × 9 what gives us 38565
+ 4285 × 90 producing 385650
+ 4285 × 300 that equals 1285500
+ 4285 × 5000 that results in 21425000

= 23134715
