Valmiki Ramayana 7.71.3
स गत्वा गणितान्वासान्सप्ताष्टौ रघुनन्दनः ।वाल्मीक्याश्रममागत्य वासं चक्रे महायशाः॥
sa gatvā gaṇitānvāsānsaptāṣṭau raghunandanaḥ |vālmīkyāśramamāgatya vāsaṃ cakre mahāyaśāḥ ||
Our plain-language meaning of this verse is waiting for scholar review.