Divorce by publication in Florida can be a necessary step if one spouse cannot be located to be served with divorce papers through traditional methods. In such cases, the court allows for service by publication in a newspaper that is likely to reach the missing spouse. Here are the steps to file for divorce by publication in Florida:

1. **Attempt to Locate the Missing Spouse**: Before you can proceed with a divorce by publication, you must make a diligent effort to locate your spouse. This may include contacting friends and family, checking public records, hiring a private investigator, or using social media.

2. **File a Petition for Simplified Dissolution of Marriage or Regular Dissolution of Marriage**: File a petition for divorce in the circuit court of the county where you or your spouse resides. If you cannot locate your spouse, you can request permission to serve by publication.

3. **File a Motion for Constructive Service**: If you have made sufficient efforts to locate your spouse without success, you can file a motion requesting permission to serve by publication. You will need to provide details of your search efforts to the court.

4. **Publish the Notice**: If the court grants your motion, you will need to publish a notice of the divorce action in a newspaper approved by the court. The notice must meet specific legal requirements and run for a designated period, usually once a week for four consecutive weeks.

5. **File Affidavit of Publication**: Once the publication is complete, the newspaper will provide you with an Affidavit of Publication. File this affidavit with the court to confirm that the notice was published as required.

6. **Wait for Response**: After the publication period has passed, your spouse has a specified time to respond to the divorce action. If they fail to do so, you may be able to proceed with the divorce uncontested.

7. **Finalize the Divorce**: If your spouse does not respond or contest the divorce, you can proceed with finalizing the divorce judgment. The court may grant the divorce based on the information provided in your petition and the publication.

It’s essential to follow the legal process carefully when pursuing a divorce by publication in Florida to ensure that all requirements are met. If you have any questions or need assistance, consider consulting with a family law attorney or a mediator who is knowledgeable about divorce proceedings in Florida.