keep it simple. since you took out more in distributions than the RMD requirement, for each IRA check that the entire amount was an RMD.
since you have multiple accounts the tax laws say you can choose which account(s) to take the RMD from. They don't have to match the RMD computed for each account. Just the total withdrawn must equal or exceed the RMD for the year.
alternatives
a) is to mark w#! 7875 as RMD
and then mark nothing for W#2 as to rmd
b) leave all RMD info blank. It's only used by Turbotax to alert you if you fail to take the RMD. It's not reported to the IRS that the distribution was an RMD. What the IRS does is compare the amount on line 4a if there or 4b to the total RMDs reported to it on forms 5695 that it receives from the IRA trustees and then compares that total to what was reported.
i follow practice b) and have never gotten anything from the IRS about failure to take RMD.
