1.) using this data: z69JZqlJn862D1ndx7oLVEMmV0lP1zewEeUCrsI7Roahzpeny7P
2.) covert to digits using my tool:
6169193552471949862131493959750213114224831047251614058144030125354187275036436 151404960725
It looks like you've used some other rules of conversion. For instance, starting from the beginning, how did you convert 'z' to '61'?