The TIN (taxpayer identification number) for a business will always be 9 digits with a dash between 2 and 3. XX-XXXXXXX. If you only enter the numbers, turbotax will automatically put the dash in the right place. If the 1099-R has the dash in a different spot, it is wrong and you should just enter the numbers.
You might be looking at an account number, instead of the TIN. The account number can be any format the bank likes, and entering it is optional. If you want to include the account number and Turbotax doesn't like dashes, just enter the numbers.