How the data will be stored/saved in memory

Hello guys,

Consider I have a USB flash memory with capacity of 8 GB. That is, it can stores 8 billion bytes or 8 billion * 8 bits (approximately)!! How those huge amount of data can be stored in a small USB flash memory?
I've heard that each bit should be exclusively stored in a snip called flip-flop. So there should be (about) 8,000,000,000 * 8 flip-flops in such a tiny USB flash. It's incredible!

This article explains how flash memory works:
HowStuffWorks "How Flash Memory Works"

Flip-flops are used in some times of memory. This is volatile storage and all data is lost when power is removed.

whs said:

It is amazing indeed when you consider that there are flash memory sticks no bigger than your 8GB model that can store 256GBs. I have a 128GB model myself and it works perfectly.

Reread my question.