Alright, let's work through 3861 times 3225 step by step
3861 × 3225 = 3225 × (3861)
+ 3225 × 1 giving us 3225
+ 3225 × 60 that is equal 193500
+ 3225 × 800 which equals 2580000
+ 3225 × 3000 what gives us 9675000

= 12451725
