Alright, let's work through 87640343 times 68071956 step by step
87640343 × 68071956 = 68071956 × (87640343)
+ 68071956 × 3 giving us 204215868
+ 68071956 × 40 producing 2722878240
+ 68071956 × 300 what gives us 20421586800
+ 68071956 × 0000 that results in 0
+ 68071956 × 40000 what gives us 2722878240000
+ 68071956 × 600000 yielding 40843173600000
+ 68071956 × 7000000 that results in 476503692000000
+ 68071956 × 80000000 what gives us 5445756480000000

= 5965849572520908
