Alright, let's work through 9966 times 8805 step by step
9966 × 8805 = 8805 × (9966)
+ 8805 × 6 which equals 52830
+ 8805 × 60 yielding 528300
+ 8805 × 900 what gives us 7924500
+ 8805 × 9000 that results in 79245000

= 87750630
