Let's calculate 4427 x 6507
4427 × 6507 = 6507 × (4427)
+ 6507 × 7 what gives us 45549
+ 6507 × 20 which equals 130140
+ 6507 × 400 that is equal 2602800
+ 6507 × 4000 that results in 26028000

= 28806489
