Complex sentence: In a two-pronged attack, Ney sent one division to the south of Elchingen on the right bank of the Danube to begin the attack, while another division, after crossing the river to the east, moved west against Riesch's position.
Split into simpler sentences: In a two-pronged attack, Ney sent one division to the south of Elchingen on the right bank of the Danube. At the same time, another division crossed the river to the east and moved west against Riesch's position.