2006 R2, division functoid returns 1.0062893081761E-5

Hi

I have a minor issue with the division functiod in BizTalk 2006 R2
It returns 0,000010062893081761 in scientific notation: 1.0062893081761E-5 and my schema validation fails due to the E-5 notation

It is a very, very rare error in the mapping/validation just wonder if it's fixable somehow by eg using extra functiods or do I need to revert to inline xslt or custom c#

Thanks in advance  /Peter