C Sharp :: ForEach Loop Logic Using KeyValuePairs

I'm new to C#. I'm trying to create a program to audit some of our processors. As you will see below, I have two foreach loops that allow me access to errorOrders(returns <<UserName, #of errors>>) and totalOrders (returns <<UserName, #of totalOrders>>).

However, the problem i'm running into now is that it seems to constantly loop through these two ForEach loops. When i run it, the 'count' on both errorOrders & totalOrders is 38. The program loops through all 38 users just fine, but then it continues to loop through users again...re-doing the process that it just finished.

I'm looking to see if there is another way I could set this section up so that it only loops through users once. I was thinking about trying to create a 'Boolean flag' that would force the program out of the ForEach loop after it has run through all the users...but i'm sure there are other ways to handle this.

foreach (KeyValuePair<string, int> error in errorOrders)
{
foreach (KeyValuePair<string, int> total in totalOrders)
{  

[Code]....

I know i should probably seperate these two foreach loops instead of having them nested..however, the problem that arises once i do that is my errPercentage can not be calculated if i do.