Let's calculate 4590 x 4721
4590 × 4721 = 4721 × (4590)
+ 4721 × 0 that results in 0
+ 4721 × 90 what gives us 424890
+ 4721 × 500 that results in 2360500
+ 4721 × 4000 giving us 18884000

= 21669390
