Depends on what you held. Normally, a 2a value is only there if you held a Bond or Stock fund collection, and that fund issued some capital gain distributions during the time you actually held those shares. Normally that's only once or twice a year (but I imagine some active funds may issue them more often).
IF you actually sold some or all the shares of that holding, either a Fund collection, or an individual stock, and had a gain on the sale, then that gain is not reported on a 1099-DIV form, but is reported instead as a part of your 1099-B/8949 entries in a separate area of the software.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*