We're going to solve 9899 multiplied by 4429
9899 × 4429 = 4429 × (9899)
+ 4429 × 9 which equals 39861
+ 4429 × 90 yielding 398610
+ 4429 × 800 producing 3543200
+ 4429 × 9000 that equals 39861000

= 43842671
