I have just started teaching myself to knit - got a great book by Boye, which has taught me a lot, and have managed to make three (slightly wobbly!) dischclothes. I am now working on a very simple afghan pattern by Red Heart. The first thing that I am supposed to do is cast on 178 stitches. According to the directions, 16 stitches should equal 4 inches (if I am reading/understanding correctly). 178 stitches divided by 16 stitches equals approximately 11; times four inches equals approximately 44 inches…my needle is only about 9 inches…what am I missing???