See the UK Government Website for an easy-to-follow, step-by-step guide about how to get divorced in England and Wales.
AdviceNow is an independent, not-for-profit law charity. Download their A Survival Guide to Divorce or Dissolution of a Civil Partnership for easy-to-understand, accurate information on divorce in England and Wales.

Also see Wikivorce for information on divorce. Wikivorce is a social enterprise run by volunteers. They have a free telephone advice helpline, as well as live chat rooms.
See the UK Government Website for an easy-to-follow, step-by-step guide if you only need to apply for contact.