Alright, let's work through 3865 times 2626 step by step
3865 × 2626 = 2626 × (3865)
+ 2626 × 5 giving us 13130
+ 2626 × 60 giving us 157560
+ 2626 × 800 that is equal 2100800
+ 2626 × 3000 resulting in 7878000

= 10149490
