You have to add up all your support needs, and then determine if your daughter provides or pays more than half your support. Look at the worksheet on page 15 here https://www.irs.gov/pub/irs-pdf/p501.pdf
For example, suppose you live in a house owned by your daughter that would rent for $1500 a month, and other household expenses for food, utilities and repairs are $300 a month. You live there with your daughter and her two children. 1/4 of that living expenses is yours, which is $450 per month. Then, your clothing, medical expenses, entertainment and travel are another $800 per month. Your total support need is $1250 per month. Then look at your income. Suppose your social security is $1000 per month but you spend $200 per month on your grandchildren and donate $200 per month to your church. You provide $600 per month toward your own support. Since your total support is $1250, you provide less than half. As long as your daughter is the only other person supporting you, she pays "more than half".
