We're going to solve 6021 multiplied by 3545
6021 × 3545 = 3545 × (6021)
+ 3545 × 1 that results in 3545
+ 3545 × 20 yielding 70900
+ 3545 × 000 that results in 0
+ 3545 × 6000 what gives us 21270000

= 21344445
