I took the index in the words, converted the variety to binary, extra 3 zeros, calculated the sha256 digest, took the first Component of the hexadecimal to convert it to binary, added three zeros towards the 8 digits in the binary and acquired 00000010011 which translates to 19 in decimal. https://altbookmark.com/story21383568/5-essential-elements-for-bip39-explained