Alright, let's work through 4520607 times 80040452 step by step
4520607 × 80040452 = 80040452 × (4520607)
+ 80040452 × 7 yielding 560283164
+ 80040452 × 00 giving us 0
+ 80040452 × 600 that is equal 48024271200
+ 80040452 × 0000 which equals 0
+ 80040452 × 20000 which equals 1600809040000
+ 80040452 × 500000 giving us 40020226000000
+ 80040452 × 4000000 that equals 320161808000000

= 361831427594364
