There is no program on the Internet that can convert a number to a long hand script. Depending on how you need this, there are different methods. If you plan on using this function in an Excel spreadsheet, for example, you need to create a macro, if you plan on developing an application that uses this, you need to create a function that is specialized for this job only. There is plenty of useful information as well as example codes that can help you in every situation on the Internet that can be found using Google.