Tennessee’s Department of Labor and Workforce says the state is making “significant” progress on the backlog of unemployment claims. Officials say as of Wednesday morning, the number of claims still on the backlog was 787. A week ago, that number was 1,607. At its height, the backlog had more than 6,000 claims on it. The state is also working to operate under a federal mandate that requires 87 percent of claims filed to be processed within 21 days.