1)
Why does it say "Hischalku" (reflexive conjugation)?
1.
Malbim: This hints to an illusory action. It seemed that they made the portions, but really, Hashem did it.
2)
Are they dividing only what was conquered, or also what remains to be conquered?
1.
Rashi: It is also what remains to be conquered.
3)
What does it mean that Yosef was in the north?
1.
Rashi: It was the north of what was already conquered.
2.
Radak: It is the north of Eretz Yisrael. 1
1
Refer to 11:23:2:1*.