I have a pattern fora baby blanket and it wants me to pcik up stitches on the top/bottom edgers and the sides. The problem, besides having never done this before, is that they don't want me to pick up all the stitches along each edge. The top and bottom edgers have 193 stitches on them and they want me to pick 176. The sides will have 294 (approx.) and they want me to pick up 218. I know the stitches need to be evenly spaced, but how do I do that? Is there a formula to figure out how to space them out evenly?