Chicago division champs (NFC North for 2010-2011). So how it was determined?

There are two reasons for this. The first is, the Bears automatically won because of the tie breaker. Being that the Packers lost to the Bears early on in the season. Secondly, the Bears are 5-0 in the division with the Packers being 3-2 and the rest of the division being 1-4. Point being, the Bears win because they haven't lost in the division and had a better record. Even if the Bears did lose to the Packers this week, they would still win due to the tie breaker and being 5-1 in the division which is better than the other opponents.