Alright, let's work through 9890 times 2006 step by step
9890 × 2006 = 2006 × (9890)
+ 2006 × 0 what gives us 0
+ 2006 × 90 that results in 180540
+ 2006 × 800 which equals 1604800
+ 2006 × 9000 resulting in 18054000

= 19839340
