You're going to enter it as though you had received a K-1 from the trust even though you didn't.
In the wages and income section of TurboTax scroll down to 'Business Items.' The second item on that list is 'Schedule K-1'. Click start next to that.
The next screen asks if you got a K1. Answer yes.
The next screen is asking about the type of K1. Click start next to 'Estate or Trust'.
Then enter the name, address and 9 digit EIN number from the tax statement that you received. Then - unless you live in a foreign country - you are a 'domestic beneficiary'.
The next thing that you should do depends on the type of income shown on your statement. Interest and dividends are in boxes 1 through 5 and capital gains are in boxes 6 through 10.
Enter that information and you will be pretty well done.