Let's calculate 1589 x 6720
1589 × 6720 = 6720 × (1589)
+ 6720 × 9 that equals 60480
+ 6720 × 80 that results in 537600
+ 6720 × 500 that results in 3360000
+ 6720 × 1000 which equals 6720000

= 10678080
