We look at the division of 15634221 by 524 
The aim is to understand the frequency of 524 in 15634221.

Moving on to step 1:
524 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 524

Moving on to step 2:
15 divided by 524 is 0 with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Append the next digit (6) from the dividend to 15 and continue with: 156 / 524

Step 3:
If we divide 156 by 524, we get 0 and a remainder of 156.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 156 to get 156.
Bring next digit (3) of the dividend behind the 156 and repeat the process: 1563 / 524

Going ahead to step 4:
524 can be fit into 1563 2 times, resulting in a remainder of 515.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 515 after subtracting 1048 from 1563.
Append the next digit (4) from the dividend to 515 and continue with: 5154 / 524

On to step 5:
If we divide 5154 by 524, we get 9 and a remainder of 438.
Put 9 as the next digit of the answer. 
Result so far: 29.0
Subtracting 4716 from 5154 leaves us with 438.
Append the next digit (2) from the dividend to 438 and continue with: 4382 / 524

Step 6:
When dividing 4382 by 524, we get 8 with a remainder of 190.
Use 8 as the next digit of our solution. 
Result so far: 298.0
Deduct 4192 from 4382 and we're left with 190.
Take the next digit (2) from the dividend and append it to 190, then repeat: 1902 / 524

Moving on to step 7:
524 can be fit into 1902 3 times, resulting in a remainder of 330.
The next digit of our result is 3. 
Result so far: 2983.0
The remainder is 330 after subtracting 1572 from 1902.
Grab the next digit (1) from the dividend, add it to 330, then carry on: 3301 / 524

Step 8:
If we divide 3301 by 524, we get 6 and a remainder of 157.
Write down 6 as next digit of the result. 
Result so far: 29836.0
The remainder is 157 after subtracting 3144 from 3301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Let's proceed to step 9:
When dividing 1570 by 524, we get 2 with a remainder of 522.
Put 2 as the next digit of the answer. 
Result so far: 29836.2
Subtract 1048 from 1570 to get 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

Going ahead to step 10:
If we divide 5220 by 524, we get 9 and a remainder of 504.
The number 9 becomes the next digit in our result. 
Result so far: 29836.29
Deduct 4716 from 5220 and we're left with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Let's proceed to step 11:
5040 divided by 524 is 9 with a remainder of 324.
The next digit of our result is 9. 
Result so far: 29836.299
The remainder is 324 after subtracting 4716 from 5040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

In conclusion, the division gives 29836.299 with a balance of 0.0324.