We look at the division of 24031129 by 396 
The aim is to understand the frequency of 396 in 24031129.

On to step 1:
2 divided by 396 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 396

Advancing to step 2:
24 divided by 396 is 0 with a remainder of 24.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 24, we get 24.
Fetch the next digit (0) from the dividend, attach it to 24 and continue: 240 / 396

Step 3:
When dividing 240 by 396, we get 0 with a remainder of 240.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 240 and we're left with 240.
Grab the next digit (3) from the dividend, add it to 240, then carry on: 2403 / 396

On to step 4:
When dividing 2403 by 396, we get 6 with a remainder of 27.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 2376 from 2403 and we're left with 27.
Fetch the next digit (1) from the dividend, attach it to 27 and continue: 271 / 396

Let's proceed to step 5:
If we divide 271 by 396, we get 0 and a remainder of 271.
The number 0 becomes the next digit in our result. 
Result so far: 60.0
Subtract 0 from 271 to get 271.
Take the next digit (1) from the dividend and append it to 271, then repeat: 2711 / 396

Going ahead to step 6:
If we divide 2711 by 396, we get 6 and a remainder of 335.
The number 6 becomes the next digit in our result. 
Result so far: 606.0
If we subtract 2376 from 2711, we get 335.
Fetch the next digit (2) from the dividend, attach it to 335 and continue: 3352 / 396

Let's proceed to step 7:
The number 396 fits into 3352 8 times, leaving a remainder of 184.
The next digit of our result is 8. 
Result so far: 6068.0
If we take 3168 away from 3352, we end up with 184.
Append the next digit (9) from the dividend to 184 and continue with: 1849 / 396

Advancing to step 8:
1849 divided by 396 is 4 with a remainder of 265.
Write down 4 as next digit of the result. 
Result so far: 60684.0
Deduct 1584 from 1849 and we're left with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Moving on to step 9:
396 can be fit into 2650 6 times, resulting in a remainder of 274.
Write down 6 as next digit of the result. 
Result so far: 60684.6
The remainder is 274 after subtracting 2376 from 2650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Moving on to step 10:
The number 396 fits into 2740 6 times, leaving a remainder of 364.
Write down 6 as next digit of the result. 
Result so far: 60684.66
Subtracting 2376 from 2740 leaves us with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

The final outcome is 60684.66, with a leftover of 0.364.