We're going to solve 9939 multiplied by 1513
9939 × 1513 = 1513 × (9939)
+ 1513 × 9 that is equal 13617
+ 1513 × 30 what gives us 45390
+ 1513 × 900 that equals 1361700
+ 1513 × 9000 yielding 13617000

= 15037707
