Part the inside fold to the right and place hakama on the front, such that the back is facing up. Fix the middle folds. Flip to the other side in a way that does not undo the folds in the back.
Fix the pleats starting from the middle and then go out.
Fold hakama into thirds.
Fold long himo in half twice.
Bring short himo over and under the long himo.
When folding someone else's uniform, to present it, place the hakama on top of the gi and present it to them with the cardboard facing you.