en_tn_condensed/num/26/53.md

The land must be divided

This can be stated in active form. Alternate translation: "You must divide the land" (See: rc://en/ta/man/translate/figs-activepassive)

these men

This refers to all of the men that were counted in their clans, beginning in Numbers 26:5.

according to the number of their names

"by the number of people in each clan"