Alright, let's work through 50030001 times 13426407 step by step
50030001 × 13426407 = 13426407 × (50030001)
+ 13426407 × 1 producing 13426407
+ 13426407 × 00 that results in 0
+ 13426407 × 000 that results in 0
+ 13426407 × 0000 giving us 0
+ 13426407 × 30000 producing 402792210000
+ 13426407 × 000000 that is equal 0
+ 13426407 × 0000000 that results in 0
+ 13426407 × 50000000 resulting in 671320350000000

= 671723155636407
