How do I train my dog to quit stopping and smelling every 5 seconds while on a walk?

My dog and I have been going on walks everyday. I understand that dogs are going to stop and smell other dogs that have been in that area, but my dog literally does it every 5 seconds. She makes it very difficult to take her on a walk. And I know she is going to stop and mark her territory but she just makes it very hard to take her. I was just wondering if anyone has had this problem if so how did you resolve it.