I took the index with the words, converted the amount to binary, additional 3 zeros, calculated the sha256 digest, took the very first Portion of the hexadecimal to convert it to binary, extra three zeros on the 8 digits with the binary and bought 00000010011 which interprets to 19 in https://hindibookmark.com/story20726898/ledger-seed-phrase-bip39-no-further-a-mystery