It is too late for me to take photos of what I do, as mine have been asleep for over a month.

I usually do my final division in the spring before potting up. That way I can see which eyes are going to be viable. Here someone else thinks that way as well.
http://www.hgtv.com/hgtv/gl_plants_perennials/article/0,1785,HGTV_3610_1396593,00.html

Here is another link that gives good description.
http://www.greendealer-exotic-seeds.com/seeds/HowtoDivide.html

However, I did find this link with pictures. It may be useful.

Here is a link that might be useful: dividing canna

Thanks for the links, Jroot. The one with the pictures showed rhizomes that look quite a bit different from mine! Mine are more oval-shaped, pretty big, and a dark purplish-red.

I think I'd be more comfortable dividing in the spring, as it will be easier to see where to cut. I don't know where to make the cuts, or if the new rhizomes can be gently pulled off, or what. I don't know how to find the eyes.

My problem is storing such a massive clump. One of the articles you shared did say it was better to leave some of the original soil on, so perhaps I could put them in a giant garbage bag filled with peat moss? Do I moisten the peat at all first or just leave it dry?

I might have to divide the monster clump at least in half, though, to get it to be a store-able size. That's what I need to know -- how to figure out where to cut. I left the stalks on to about 8" high as that's what I had read. Are the stalks any indication of where to cut?

And can I use cinnamon as a fungicide? (I know it's what you should use on orchids, and I just used some last night when I repotted.)

Thanks in advance!!!

:-) Mel

This is what I have done : 1. dig up the tubers 2. cut the stems off 3. dry for a few weeks 4. break them apart so they will fit into my box--I leave 1-3 growing tips on each one, break the excess soil off 5. place in a box with sawdust as a filler 6. store in garage at 50* till Spring(June) SB