Let's calculate 87352872 x 72088401
87352872 × 72088401 = 72088401 × (87352872)
+ 72088401 × 2 resulting in 144176802
+ 72088401 × 70 yielding 5046188070
+ 72088401 × 800 that equals 57670720800
+ 72088401 × 2000 that results in 144176802000
+ 72088401 × 50000 resulting in 3604420050000
+ 72088401 × 300000 giving us 21626520300000
+ 72088401 × 7000000 yielding 504618807000000
+ 72088401 × 80000000 what gives us 5767072080000000

= 6297128865237672
