create new div

I am using this code below to get and limit the amount of child pages posted to the parent. The post snippets are going into a div. when they hit 7 I want to create a new div and limit it to 7 and so on and on.. Once the posts hit 7 create a new div and get next 7.

see code below.

[Code moderated as per the Forum Rules. Please use the pastebin]