Number + 万
The number 万 (wàn) means "ten thousand" and serves as a basic counting unit in the Chinese number system. Unlike English, which groups numbers by thousands, Chinese uses 万 as a unit, so one million is expressed as 一百万 (one hundred ten-thousands).
这座城市有超过八百万人口。
zhè zuò chéngshì yǒu chāoguò bā bǎi wàn rénkǒu.
This city has a population of over eight million.
他去年赚了十万块钱。
tā qùnián zhuàn le shí wàn kuài qián.
He earned one hundred thousand yuan last year.
这个视频的播放量已经超过五百万了。
zhège shìpín de bōfàngliàng yǐjīng chāoguò wǔ bǎi wàn le.
The play count of this video has already exceeded five million.