Alright, let's work through 59431803 times 72742963 step by step
59431803 × 72742963 = 72742963 × (59431803)
+ 72742963 × 3 which equals 218228889
+ 72742963 × 00 producing 0
+ 72742963 × 800 which equals 58194370400
+ 72742963 × 1000 giving us 72742963000
+ 72742963 × 30000 giving us 2182288890000
+ 72742963 × 400000 what gives us 29097185200000
+ 72742963 × 9000000 what gives us 654686667000000
+ 72742963 × 50000000 that is equal 3637148150000000

= 4323245446652289
