Alright, let's work through 99433766 times 66899766 step by step
99433766 × 66899766 = 66899766 × (99433766)
+ 66899766 × 6 yielding 401398596
+ 66899766 × 60 giving us 4013985960
+ 66899766 × 700 what gives us 46829836200
+ 66899766 × 3000 what gives us 200699298000
+ 66899766 × 30000 that results in 2006992980000
+ 66899766 × 400000 that is equal 26759906400000
+ 66899766 × 9000000 which equals 602097894000000
+ 66899766 × 90000000 giving us 6020978940000000

= 6652095677898756
