Alright, let's work through 4199 times 5439 step by step
4199 × 5439 = 5439 × (4199)
+ 5439 × 9 that is equal 48951
+ 5439 × 90 yielding 489510
+ 5439 × 100 what gives us 543900
+ 5439 × 4000 yielding 21756000

= 22838361
