We're going to solve 4511 multiplied by 1521
4511 × 1521 = 1521 × (4511)
+ 1521 × 1 yielding 1521
+ 1521 × 10 yielding 15210
+ 1521 × 500 that is equal 760500
+ 1521 × 4000 yielding 6084000

= 6861231
