Alright, let's work through 9990 times 1760 step by step
9990 × 1760 = 1760 × (9990)
+ 1760 × 0 that is equal 0
+ 1760 × 90 producing 158400
+ 1760 × 900 which equals 1584000
+ 1760 × 9000 that is equal 15840000

= 17582400
