Complex sentence: Very soon, however, Benoist's financial genius enabled him to triumph over his embarrassments and he opened the doors of his bank, paid all depositors what was due them, with ten percent interest for the time their funds had been tied up.
Split into simpler sentences: Very soon, however, Benoist's financial expertise enabled him to overcome his challenges and he opened the doors of his bank. His depositors were paid what was due them at ten percent interest for the time their funds had been tied up.