create or replace PROCEDURE Fr(
    v_num VARCHAR2)
AS
  TYPE oldfg IS TABLE of NUMBER INDEX BY pls_INTEGER;
  rr oldfg;
  i integer;
  j integer;
BEGIN

loop
i := i + 1;
j := j + 6;
 rr(i) :=  replace(replace (substr(v_num, j, instr(v_iotdnum, ',')), ' '), ',');
 DBMS_OUTPUT.enable;
 DBMS_OUTPUT.put_line(TO_CHAR(rr(1)));
 if i = 10 then exit;
 end if;
end loop;

 DBMS_OUTPUT.enable;
 DBMS_OUTPUT.put_line(TO_CHAR(rr(1)));
end;

"PL/SQL: numeric or value error%s"

rr(i) :=  replace(replace (substr(v_num, j, instr(v_num, ',')), ' '), ',');

'6403, 1562, 3214, 1232, 1231, 6756, 5654, 5455, 7777, 8888'