Well you lot.
When you open chapter 1 you generate a view.
When you open chapter 1.1, 1.2 and 1.3 you generate three views.
It's like those online newspapers that split long articles into 3 pages for you to generate more traffic and reload a new ad.
It is annoying but people get used to it over time and then comes phase two.
You read 1.1 and 1.2 then you proceed to 1.3 and you have to pay $ to view it.
Then to view chapter 2 you don't need to pay $ but $$$ and it brings profit and smiles for the online publisher, because nobody's gonna pay 3$ per chapter, that's scam! But everybody is going to pay 1$ per part 1 of chapter, because it's a lower price, right? Then we split it into 4 and 5 parts (5$ per chapter, moar money for free!)
(Prices are just imaginary, I didn't base it on anything but a imaginary greed of imaginary publishers)
@Harry_Dong basically every isekai series is like this if you don't include the fat, lol