Evaluate without using the factorial key on a calculator. \[ \frac{9 !}{7 !} \] The solution is $\square$.

Step 1 ：Define the numbers 9 and 8

Step 2 ：Calculate the product of 9 and 8

Step 3 ：The result is 72

Step 4 ：The solution is \( \boxed{72} \)