If you have an excess amount entered in Box 9 of Form 1099-DIV, it does not flow to your tax return. It should be entered as an investment sale in the same way you would enter a transaction reported on Form 1099-B.
To enter this in TurboTax you would:
Click on your Search icon in the upper right of your TurboTax screen
Type "Investment sales" in the search bar and click Enter
Click on the link "Jump to Investment sales"
When you see the screen "Did you sell any investments in 202*?" Answer "Yes"
When you see the question "Did you get a Form 1099-B..." answer "No"
Enter the name of broker that sent you the Form 1099-DIV
On the screen that says "Now we'll walk you through entering your sale details" Indicate "Stock" (or something else if more appropriate)
Answer all of the follow-up questions to complete entering the details of the sale
Your TurboTax screen will look something like this: