Complex sentence: The battle resulted in the complete rout and disorganization of the enemy, and in achieving the result only seven battalions of Frederick's army had fired a shot-the rest had been the work of Seydlitz and his 38 squadrons.
Split into simpler sentences: The battle resulted in the complete rout and disorganization of the enemy. In achieving this result, only seven battalions of Frederick's army had fired a shot-the rest had been the work of Seydlitz and his 38 squadrons.