What steps should I follow to stay in Thailand for more than 90 days with a DTV visa?

To stay in Thailand for more than 90 days on a DTV visa, follow these steps: 1) Fill out the DTAC form 72 hours before departure, 2) Request the TM30 form from your hotel, keeping in mind you'll be traveling, and 3) Visit the immigration office for your 90-day report between 2 weeks before and 1 week after your 90-day period ends. The suggested immigration office in Bangkok is Chaeng Wattana.