Yehoshua Chapter 14, Sept. 15th

We are already up to Chapter 14!

Today, take a look at this famous Midrash:

תלמוד בבלי מסכת זבחים דף קיח עמוד ב

ת"ר: ...ימי אהל מועד שבגלגל - ארבע עשרה, ז' שכבשו וז' שחלקו...

Or in English: "The sages learned... The tabernacle was 14 years in Gilgal, 7 while they conquered and 7 while they divided."

Explain the calculation based on psukim 7, 10.