Retirement tax questions

So let's say the amount that the 401k says we withdrew on the 1099-R statement is $236 but the check they sent us was for $186. (Amount after taxes were taken out). Your saying because I deposited it into a checking account, BEFORE I transferred it into the Roth IRA, that I have to supplement the taxes that were taken out from my own income? Will I get a refund for that supplement? How do I report this in turbo tax?