Let's calculate 6637 x 6287
6637 × 6287 = 6287 × (6637)
+ 6287 × 7 that results in 44009
+ 6287 × 30 that is equal 188610
+ 6287 × 600 that results in 3772200
+ 6287 × 6000 that results in 37722000

= 41726819
