如何提取一个值（数字）并将其除以另一个数字？

I have a website that I'm working on and there needs to be a bit of jquery added that will pull the value out of a raised paragraph tag, and divide it by 5, and then display that value below the original paragraph tag. I've been searching for some helpful code and I think I've found the right technique but when I put it in the code it returns nothing and I haven't been able to figure out why (novice with jquery)I have a website that I'm working on and there