Alright, let's work through 68009908 times 82634542 step by step
68009908 × 82634542 = 82634542 × (68009908)
+ 82634542 × 8 producing 661076336
+ 82634542 × 00 which equals 0
+ 82634542 × 900 what gives us 74371087800
+ 82634542 × 9000 resulting in 743710878000
+ 82634542 × 00000 giving us 0
+ 82634542 × 000000 yielding 0
+ 82634542 × 8000000 that results in 661076336000000
+ 82634542 × 60000000 yielding 4958072520000000

= 5619967599042136
