Complex sentence: Upon return to his teepee he sees that his meat has been eaten and that his fire was out and the only thing Ikotmi thinks is that he should have eaten the meat that he found first before going to retrieve his blanket.
Split into simpler sentences: Upon return to his teepee he sees that his meat has been eaten and that his fire is out. Ikotmi realizes that he should have eaten the meat first before going to retrieve his blanket.