Alright, let's work through 56046385 times 13703603 step by step
56046385 × 13703603 = 13703603 × (56046385)
+ 13703603 × 5 that equals 68518015
+ 13703603 × 80 resulting in 1096288240
+ 13703603 × 300 yielding 4111080900
+ 13703603 × 6000 producing 82221618000
+ 13703603 × 40000 producing 548144120000
+ 13703603 × 000000 resulting in 0
+ 13703603 × 6000000 producing 82221618000000
+ 13703603 × 50000000 that equals 685180150000000

= 768037409625155
