assuming 1) it's her SSN on the 1099-DIV, 2) all her income is it, and 3) the total of dividends and capital gain distributions is not greater than $1300, there is no reporting on your return and she does not have to file her own return. She's not subject to the kiddie tax (it's tax-free).
if your SSN is on it, you're going to have to report it as in an out
