Alright, let's work through 72494955 times 71457764 step by step
72494955 × 71457764 = 71457764 × (72494955)
+ 71457764 × 5 giving us 357288820
+ 71457764 × 50 that equals 3572888200
+ 71457764 × 900 that is equal 64311987600
+ 71457764 × 4000 what gives us 285831056000
+ 71457764 × 90000 that results in 6431198760000
+ 71457764 × 400000 which equals 28583105600000
+ 71457764 × 2000000 resulting in 142915528000000
+ 71457764 × 70000000 that equals 5002043480000000

= 5180327385580620
