Alright, let's work through 9942629 times 42266266 step by step
9942629 × 42266266 = 42266266 × (9942629)
+ 42266266 × 9 which equals 380396394
+ 42266266 × 20 giving us 845325320
+ 42266266 × 600 resulting in 25359759600
+ 42266266 × 2000 which equals 84532532000
+ 42266266 × 40000 giving us 1690650640000
+ 42266266 × 900000 that results in 38039639400000
+ 42266266 × 9000000 that results in 380396394000000

= 420237802053314
