I have a dataset with a text field that contains long free flowing text values , I need to identify and extract all the 16 digit account number from that text field and create a column from those extracted account number

Data that I have

    input acct_num   txt_field  ;
    DATALINES; 
    3435436     Payment issue reported 3456123789065322 to 0909876789432123 dated 9 mar 2024  
    7789976     Data declined and assigned to 7890512323454545  

Data that I need

acct_num              txt_field                                                                       acct1               acct2
    3435436     Payment issue reported 3456123789065322 to 0909876789432123 dated 9 mar 2024   3456123789065322    0909876789432123
    7789976     Data declined and assigned to 7890512323454545                                 7890512323454545  

As of now I have used Prxparse and prxmatch functions but those work when you know what exactly to look for in the text field, here I am just looking for any 16 digit values