Trimming nails and hooves is part of farm life, and sometimes you'll accidentally cut the quick, causing bleeding.
If the toe/foot is barely bleeding, you can likely get away with just cleaning it with hydrogen peroxide or Betadine (hydrogen peroxide doesn't sting). We just squirt some on a piece of gauze and wipe off the blood; we'll maybe also squirt some right on the site. (With chickens, it's important to get rid of any blood on them because they (and especially their friends) may pick at it.) If the animals are healthy, the bleeding should stop quickly.
If the bleeding doesn't want to stop quickly, you can squirt on Wonder Dust. This is a powder that stops bleeding.
If the cut is bad, you can put on antibacterial spray, plus triple-antibiotic ointment and then wrap the foot.