how do we put a Japanese hakama on the right way?

1. you'll need a belt that's 3 times the length of your waist plus some extra for a double knot. the best for this, is judo-/ karate-belt that isn't stitched and you can buy per meter.

long belt
front
belt with the double knot

2. take the front a the hakama and pull it above the belt. take those ribbons above the belt to the back, then cross them an take them back to the front under the belt. then mate a single knot and a bow.

front above the belt
crossed at the back
front under the belt
back under the belt and knot

3. take the back-plate and pull it over both knots. pull those ribbons under all the other ribbons and the belt (against the vest) to the front on both sides.

back-plate over the knots
ribbons under all the other ribbons and belt

4. knot those ribbons in the middle of the front. wrap 1 ribbon loosely around your hand, but keep it in the middle. wrap the other ribbon around the first one to make a Japanese bow.

knot
first ribbon
Japanese bow