Let's calculate 6446 x 6677
6446 × 6677 = 6677 × (6446)
+ 6677 × 6 resulting in 40062
+ 6677 × 40 that is equal 267080
+ 6677 × 400 that equals 2670800
+ 6677 × 6000 that is equal 40062000

= 43039942
