How do you remove a rear brake drum on a peugeot 206?

Remove road wheel. Using a large screwdriver or similar push handbrake lever behind rear brake shoe web. Remove hub cap and hub nut. Drum should now come off fairly readily. Tapping around circumference with a hammer may be necessary. In worst case use a hub puller but then you will need to replace brake shoe hold-down clips and possibly brake shoes as these will be damaged.