Alright, let's work through 3871 times 3594 step by step
3871 × 3594 = 3594 × (3871)
+ 3594 × 1 what gives us 3594
+ 3594 × 70 producing 251580
+ 3594 × 800 that is equal 2875200
+ 3594 × 3000 that equals 10782000

= 13912374
