Complex sentence: Cain and Stonecutter then fought locked in a bear hug so tight no external force could affect them and Cain forced Stonecutter into the God Machine which caused the eight Exemplars to be hurled off to different sections of the Earth ending the struggle.
Split into simpler sentences: Cain and Stonecutter then fought and got locked in a bear hug so tight that no external force could affect them, while Cain forced Stonecutter into the God Machine. This caused the eight Exemplars to be hurled off to different sections of the Earth ending the struggle.