@Stacey ***************
I live in Kanchanaburi and got my bike and car licences last year. In addition to what George says I also had to get a certificate of residence (one for each licence) from immigration, about 20 mins, B500 and a health certificate from the local hospital, also 20 mins and B500.
At DLT I had to watch the road safety video, 1 hour. In all it took about 2 hours in DLT
I have full UK car licence, which is also a provisional bike licence and had an IDP