Alright, let's work through 3938 times 3871 step by step
3938 × 3871 = 3871 × (3938)
+ 3871 × 8 that is equal 30968
+ 3871 × 30 producing 116130
+ 3871 × 900 what gives us 3483900
+ 3871 × 3000 resulting in 11613000

= 15243998
