As a person in the cryptocurrency space, you must own Bitcoin. You might say that Bitcoin is too expensive at $100,000 now. That's okay, if you believe in Bitcoin and want to own some, you can buy 0.5, 0.1, 0.01, or 0.0001 Bitcoin.
The charm of the cryptocurrency world is that it's friendly enough that if you have $5, you can join in. You can spend $5 to buy a few satoshis of Bitcoin.
1 satoshi = 0.00000001 Bitcoin, which means 1 Bitcoin = 100 million satoshis.
Satoshi is the smallest unit of Bitcoin (named after Satoshi Nakamoto).
1 BTC = $100,000 × 7.24 (exchange rate) = 724,000 RMB
1 satoshi = 1 BTC ÷ 100 million = 724,000 RMB ÷ 100 million = 0.00724 RMB
Do you see? When Bitcoin is $100,000, 1 satoshi is less than a cent.
And with your $5 x 7.24 = 36.2 ÷ 0.00724 = 5000 satoshis of Bitcoin.
It's that simple, you own Bitcoin now.