Complex sentence: He worked at Comptoir Horloger Raiguel Jeune-a trader of watch parts, soon taking over the business when in 1833 he and two of his associates set up a company named Comptoir Raiguel Jeue & Cie.
Split into simpler sentences: He worked at Comptoir Horloger Raiguel Jeune-a trader of watch parts. In 1833 he and two of his associates set up a company named Comptoir Raiguel Jeue & Cie.