Alright, let's work through 20255242 times 71316512 step by step
20255242 × 71316512 = 71316512 × (20255242)
+ 71316512 × 2 giving us 142633024
+ 71316512 × 40 that results in 2852660480
+ 71316512 × 200 resulting in 14263302400
+ 71316512 × 5000 what gives us 356582560000
+ 71316512 × 50000 producing 3565825600000
+ 71316512 × 200000 giving us 14263302400000
+ 71316512 × 0000000 resulting in 0
+ 71316512 × 20000000 resulting in 1426330240000000

= 1444533209155904
