Place the beef chunks in the slow cooker. Sprinkle the flour, salt, and pepper over the meat and toss to coat evenly.
Add the chopped onion, minced garlic, chipotle peppers, adobo sauce, cumin, and oregano.
Pour in the beef broth and stir gently to combine everything.
Cover and cook on low for 7 hours.
Stir in the black beans and frozen corn. Continue cooking for 1 more hour until the beans are heated through and the gravy has thickened.
Taste and adjust salt or pepper if needed. Ladle into bowls and top with fresh cilantro.