Alright, let's work through 1136 times 9990 step by step
1136 × 9990 = 9990 × (1136)
+ 9990 × 6 that results in 59940
+ 9990 × 30 that results in 299700
+ 9990 × 100 which equals 999000
+ 9990 × 1000 that is equal 9990000

= 11348640
