Alright, let's work through 1240 times 9099 step by step
1240 × 9099 = 9099 × (1240)
+ 9099 × 0 that equals 0
+ 9099 × 40 which equals 363960
+ 9099 × 200 that is equal 1819800
+ 9099 × 1000 yielding 9099000

= 11282760
