you may try something like the following:
SELECT table1.field1, table2.field1
FROM table1 INNER JOIN table2 ON table1.field1 = table2.field1
GROUP BY table1.field1, table2.field1
HAVING (((table1.field1) Like "*" & [Enter Number] & "*") AND ((table2.field1) Like "*" & [Enter Number] & "*"))...