Let's calculate 3871 x 6477
3871 × 6477 = 6477 × (3871)
+ 6477 × 1 giving us 6477
+ 6477 × 70 that results in 453390
+ 6477 × 800 that results in 5181600
+ 6477 × 3000 what gives us 19431000

= 25072467
