I took the index with the words, transformed the range to binary, extra 3 zeros, calculated the sha256 digest, took the initial Section of the hexadecimal to convert it to binary, additional three zeros for the eight digits from the binary and acquired 00000010011 which interprets to 19 in decimal. http://josuejnub341.image-perth.org/from-words-to-riches-exactly-how-to-effectively-use-bip39-passphrases-for-your-copyright-wallets