Marsha at 8/9 yard of fabric she cut it into four pieces of equal length. how long was each piece?

Here we are doing 8/9 divided by 4. 4 as a fraction is 4/1. When we divide we flip this fraction around and multiply therefore we get

8/9 ÷ 4/1
8/9 x 1/4
8/36 yard length (simplified to 2/9)