Alright, let's work through 5159 times 4138 step by step
5159 × 4138 = 4138 × (5159)
+ 4138 × 9 that equals 37242
+ 4138 × 50 which equals 206900
+ 4138 × 100 what gives us 413800
+ 4138 × 5000 which equals 20690000

= 21347942
