Phaladeepika
बिन्दौ स्थिते तत्फलसिद्धिकाल विनिर्णयाय प्रहितेऽष्टवर्गे । भान्यष्टधा तत्र विभज्य कक्षा क्रमेण तेषां फलमाहुरन्ये ॥ १६॥
When a benefic dot exists in a Bhava in an Ashtakavarga, in order to definitely fix the exact time of its (benefic dot's) fruition, a Rasi is divided into 8 equal divisions and the divisions are allotted to the planets and the Lagna according to their orbits and the effect will occur in the transit over the particular division owned by the planet that put forth the benefic dot.
english translation
bindau sthite tatphalasiddhikAla vinirNayAya prahite'STavarge । bhAnyaSTadhA tatra vibhajya kakSA krameNa teSAM phalamAhuranye ॥ 16॥
hk transliteration by Sanscript