Leading Zeroes in Mapping

Current output:
BPR*H*36.84*D*ZZZ**ZZ*92766526

How our partner would like to see it:
BPR*H*0000000000000036.84*D*ZZZ**ZZ*92766526

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You can achieve this by using the format number function. Use the math function Format-Number in data mapper.
Below is sample syntax in which the Salary field is formated into required format that is 0000000000.00


format-number($Input_databasetesting/DB/sb4.eb22._._dbo._testingnew_/SALARY ,"0000000000.00" )

Here $Input_databasetesting/DB/sb4.eb22._._dbo._testingnew_/SALARY is XPath of source element.