Let's calculate 9889 x 1769
9889 × 1769 = 1769 × (9889)
+ 1769 × 9 what gives us 15921
+ 1769 × 80 yielding 141520
+ 1769 × 800 that results in 1415200
+ 1769 × 9000 that is equal 15921000

= 17493641
