Parse a Keyword field in Workflow Designer??

Does anyone know if it's possible to Parse a keyword field in Workflow Designer?  We have a field that we are using that is being populated with Account #'s (AA_1000, BB_2000, CC_3000), etc....and we would like to be able to parse those account numbers out to put into a Workflow Variable for each so that we have Workflow Variable as follows:  AccountAA=1000  AccountBB=2000 AccountCC=3000.

I was trying to use an Arithmetic Expression to try and parse it out in the Assign Data, but am not sure how to do this.

Thanks!!

Dear Daryl Foxhoven! It looks like the Community cannot answer your question. Thats why we have opened a Support Request with the Number SR-115161-L8L4C for you. A Software Support Specialist will contact you directly to follow up. We will update this thread with the solution as soon as we have solved the Support Request. With Best Regards, DocuWare Support Team

https://support.docuware.com/en-us/knowledgebase/article/KBA-36254