Complex sentence: Dr. Banda rewarded him with postgraduate studies in central banking in Britain and France before returning to take up the post of Governor of the Reserve Bank of Malawi, which he held for 13 years.
Split into simpler sentences: Dr. Banda rewarded him with postgraduate studies in central banking in Britain and France. Later he was to use the knowledge as Governor of the Reserve Bank of Malawi, a post he held for 13 years.