Alright, let's work through 3968 times 3981 step by step
3968 × 3981 = 3981 × (3968)
+ 3981 × 8 that is equal 31848
+ 3981 × 60 giving us 238860
+ 3981 × 900 what gives us 3582900
+ 3981 × 3000 what gives us 11943000

= 15796608
