Alright, let's work through 4031 times 2619 step by step
4031 × 2619 = 2619 × (4031)
+ 2619 × 1 that is equal 2619
+ 2619 × 30 what gives us 78570
+ 2619 × 000 what gives us 0
+ 2619 × 4000 yielding 10476000

= 10557189
