Complex sentence: Initially five students came to study with the resident missionaries, but by the end of the first year this number had grown to fifty-five with as many as forty-six living in a dormitory facility rented by the school.
Split into simpler sentences: Initially five students came to study with the resident missionaries. By the end of the first year this number had grown to 55 with as many as 46 living in a dormitory rented by the school.