Drain the water away and set the pot on the newspaper. The roots should come out of the pot easily now that the water has softened them. If any are still clinging to the pot, pry them off gently.
Remove the old media as well as you can without damaging the roots. Check for dead roots and slice these off with a sharp knife. If you are dividing the orchid now is the time to make the cut.
Sprinkle all cut surfaces with the cinnamon.
Dampen fresh media and place it into the new orchid pots.
When repotting orchids it's important to use pots just large enough to hold the roots comfortably. Too much media leads to too much moisture being held around the roots. This leads to rot.
I know it's tempting to put them into a bigger pot so you won't have to repot so often. This is one temptation it would be better to resist.
Settle the plants into their new pots. Put more media on top of the roots. Shake the pots and bang them on the table to settle it. Use your fingers to push the media into any empty spots. Shake off any excess.
Place the repotted orchids into the shade and wait at least a day or two before watering them.
The roots have just been soaked in water and the new media is damp so they shouldn't need it. If you water them now, you risk washing away the fungicide and exposing them to rot.
Caring for orchids offers instruction on how to grow orchids to beginners as well as experienced gardeners. Includes growing orchids indoors, orchid propagation, raising, pruning and repotting various types of orchids.