Alright, let's work through 3981 times 340 step by step
3981 × 340 = 340 × (3981)
+ 340 × 1 that results in 340
+ 340 × 80 resulting in 27200
+ 340 × 900 giving us 306000
+ 340 × 3000 what gives us 1020000

= 1353540
