Alright, let's work through 6855 times 3638 step by step
6855 × 3638 = 3638 × (6855)
+ 3638 × 5 that is equal 18190
+ 3638 × 50 that is equal 181900
+ 3638 × 800 what gives us 2910400
+ 3638 × 6000 giving us 21828000

= 24938490
