We look at the division of 68010426 by 525 
The aim is to understand the frequency of 525 in 68010426.

Advancing to step 1:
525 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 525

Going ahead to step 2:
525 can be fit into 68 0 times, resulting in a remainder of 68.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Fetch the next digit (0) from the dividend, attach it to 68 and continue: 680 / 525

On to step 3:
If we divide 680 by 525, we get 1 and a remainder of 155.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 525 away from 680, we end up with 155.
Grab the next digit (1) from the dividend, add it to 155, then carry on: 1551 / 525

Step 4:
525 can be fit into 1551 2 times, resulting in a remainder of 501.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 1050 from 1551 to get 501.
Grab the next digit (0) from the dividend, add it to 501, then carry on: 5010 / 525

Moving on to step 5:
5010 divided by 525 is 9 with a remainder of 285.
Use 9 as the next digit of our solution. 
Result so far: 129.0
The remainder is 285 after subtracting 4725 from 5010.
Append the next digit (4) from the dividend to 285 and continue with: 2854 / 525

Moving on to step 6:
The number 525 fits into 2854 5 times, leaving a remainder of 229.
The number 5 becomes the next digit in our result. 
Result so far: 1295.0
Subtracting 2625 from 2854 leaves us with 229.
Bring next digit (2) of the dividend behind the 229 and repeat the process: 2292 / 525

Step 7:
The number 525 fits into 2292 4 times, leaving a remainder of 192.
The next digit of our result is 4. 
Result so far: 12954.0
Deduct 2100 from 2292 and we're left with 192.
Take the next digit (6) from the dividend and append it to 192, then repeat: 1926 / 525

Going ahead to step 8:
When dividing 1926 by 525, we get 3 with a remainder of 351.
Put 3 as the next digit of the answer. 
Result so far: 129543.0
If we subtract 1575 from 1926, we get 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Step 9:
When dividing 3510 by 525, we get 6 with a remainder of 360.
Use 6 as the next digit of our solution. 
Result so far: 129543.6
Subtracting 3150 from 3510 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 10:
If we divide 3600 by 525, we get 6 and a remainder of 450.
The number 6 becomes the next digit in our result. 
Result so far: 129543.66
Deduct 3150 from 3600 and we're left with 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

After the division, we end up with 129543.66 and a remainder of 0.45.