I would be very careful, especially if you use a ladder. If you haven't seen any of the "idiots with chainsaws" videos on youtube, I strongly recommend watching them. They are typically meant to be funny or entertaining, but I believe they are a very good training aid about what not to do. You can see several examples in one place of how tree parts react after being cut off, many of which a person would never suspect if they hadn't seen it beforehand. Many of them involve a person cutting off a large branch from a ladder. What they don't expect is that when the branch falls off, the leafy end hits the ground and then the cut end swings down and takes out the ladder, leaving them with nothing but ten feet of air under them holding a running chainsaw!
If you have a
tractor (or probably even a truck would do) I would consider just tying on to the fallen part with a long rope, chain, or cable and pulling it off safely from a distance. I think if you pull it at sharp angle to how it split, it will likely tear off shorter rather than splitting farther down the tree. Ideally, I would want a rope longer than the tree is tall, in case it breaks off at the
roots and the whole thing topples toward you. I think this would be the safest route.
Edit: I posted too late! Good job getting it down safely!
And he said, "I want to live as an honest man, to get all I deserve, and to give all I can, and to love a young woman whom I don't understand. Your Highness, your ways are very strange."