Alright, let's work through 12627421 times 57297678 step by step
12627421 × 57297678 = 57297678 × (12627421)
+ 57297678 × 1 resulting in 57297678
+ 57297678 × 20 which equals 1145953560
+ 57297678 × 400 yielding 22919071200
+ 57297678 × 7000 that equals 401083746000
+ 57297678 × 20000 producing 1145953560000
+ 57297678 × 600000 that is equal 34378606800000
+ 57297678 × 2000000 producing 114595356000000
+ 57297678 × 10000000 that results in 572976780000000

= 723521902428438
