Let's calculate 6521 x 4087
6521 × 4087 = 4087 × (6521)
+ 4087 × 1 that results in 4087
+ 4087 × 20 that results in 81740
+ 4087 × 500 that is equal 2043500
+ 4087 × 6000 that results in 24522000

= 26651327
