Your attorney will file all the necessary paperwork. The attorney then will advise to get a temporart restraining order served to your spouse as this is a common practice. If there are any issues that need to be addressed prior, a temporary orders hearing may take place for issues such as who lives in the house or where will the kids live. After this comes the discovery process where both sides are allowed to ask questions and request documents from the other party. After this comes mediation where a neutral third party mediator will help the parties reach an agreement. If you can't come to an agreement by then, a final trial will be needed. At the final trial all of the issues and evidence will be presented to a judge or a jury for a decision.