It is possible provided you pick the right type and age of dog.
Obviously a young puppy will not be possible - they need someone around nearly all the time to train them and of course they need to toilet very frequently. You'd be best off with an older dog, perhaps one that's already used to being left at home. Even so, you will need to be prepared to take several weeks off work to settle the dog in and get it used to being left in your home by building up the length of time very gradually. The other problem is finding a suitable dog - you'll probably have to go down the private rehoming route as sadly many rescues seem to think that all dog owners should stay at home with the dog all day every day and somehow make a living as well!
A high energy or very intelligent breed that needs a lot of stimulation would also be a bad idea. It has NOTHING to do with size of dog. Some very small dogs needs huge amounts of exercise and some large dogs need very little.
We have a medium sized lurcher who is great, doesn't mind being left at home or in the car at all. If we have to leave her we always ensure she's had a good walk before and after, and we leave her with a Kong toy (this is like a semi solid hollow rubber shape) stuffed with frozen goodies to keep her busy - she has to lick/chew/chuck it about to get the food out slowly. There's lots of similar toys available. She is a typical lurcher, very lazy and so long as she's in a familiar environment, is warm and comfortable, she'll sleep nearly all day.
My OH is currently looking for a new job, he's usually home at the moment but when he gets ones we'll have someone walk ours at lunch time as personally I think 10 hours is too long without a comfort break!
