Complex sentence: Before proceeding towards the Yangtze River, the treasure fleet made a stop at Liujiagang to organize the fleet in squadrons and to honor Tianfei, the goddess of sailors, with prayers and sacrifices.
Split into simpler sentences: Before proceeding towards the Yangtze River, the treasure fleet made a stop at Liujiagang. There, the fleet was organized in squadrons and the fleet's crew honored Tianfei, the goddess of sailors, with prayers and sacrifices.