Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · Signs, Planets, Birth
जातकम् १
तच्छेषश्च त्रिगुणितः तेनैवाप्तं दिनानि च ।शेषे षष्ट्या हते भक्ते हारेण घटिकादिकम् ॥ १२७ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 55, verse 127.
Multiply that remainder by three. Divide by the same divisor to get days. Multiply the next remainder by 60 and divide by the divisor: ghatikas (24-minute unit) and the rest. (Our text is unclear here: it says three, where 30 days make a month.)
Simple meaning: The remainders are turned into days and smaller units.
हित्वा भाज्यंगभागादीन्कलीकृत्य खखाक्षिभिः ।
The rising sign's degrees are turned into minutes and divided to give years.
द्विसप्तांशे च मासादिलग्नायुर्जायते स्फुटम् ।
A step to find the rising sign's life in months, and to start the degree method.
खयुगैरायुरंशाः स्युस्तत्संस्कारं वदामि ते ।
A correction is made only in a certain case.