For your reference, this isn’t gibberish its HTML. Is there a particular reason why your data includes a whole table in HTML format instead of just the individual data points (name, number, pin)? Where is the data coming from and is it possible to adjust your import method to come out cleaner?
Since you didn’t include the full output of the field the answer may vary depending on the following:
Is the account number always the same number of characters?
Is the account number always preceded by (presumably, guessing based on standard HTML structure) this?: <td>Your Account Number:</td><td>