40,000
By knowing that centi means 100th part and kilo means 1000 times. So there must be 100,000 cm in 1 km.
8326 km = 5,173.536 mi.
Your 382,500 km, which is close to the diameter of the moon, is about 237,674.5 miles.
268581 mi. = 432,239.22 km