This a good example what the world is doing to create Bitcoin and secure the network . People think this will be the one world currency that the bible predicts allowing any age, person or country to have an account. People are already inserting NFC chips in there hand and paying with bitcoin. If this is true less then one percent of the world will be able to have 1 bitcoin. Each bitcoin (BTC) is divisible to the 8th decimal place, so each BTC can be split into 100,000,000 units. Each unit of bitcoin, or 0.00000001 bitcoin, is called a satoshi. A Satoshi is the smallest unit of Bitcoin.
This will explain how bitcoins are mined and also show how people are using bitcoins in everyday use.