title: How to auto-populate a string into character wise in boxes?
body: <p>how to auto populate a string into characters in small boxes, which are predefined in a form?</p>
  
  <p>eg: in bank account forms, if we have an account number, say, <code>01134567</code>, how to auto-populate it into a document with the same predefined form which has individual cells for each of the number? like <code>[0][1][1][3]</code> ... (each sq. bracket symbolizes a cell)</p>