Genesis 11:19 Midrash

וַֽיְחִי־פֶ֗לֶג אַחֲרֵי֙ הוֹלִיד֣וֹ אֶת־רְע֔וּ תֵּ֥שַׁע שָׁנִ֖ים וּמָאתַ֣יִם שָׁנָ֑ה וַיּ֥וֹלֶד בָּנִ֖ים וּבָנֽוֹת׃ (ס)

And Peleg lived after he begot Reu two hundred and nine years, and begot sons and daughters.

Read midrashic interpretation of Genesis 11:19: and classical rabbinic exegesis.