69190539 ÷ 525 
The aim is to understand the frequency of 525 in 69190539.

Step 1:
The number 525 fits into 6 0 times, leaving 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.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 525

Step 2:
The number 525 fits into 69 0 times, leaving a remainder of 69.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 69 to get 69.
Include the next digit (1) from the dividend after 69, then repeat: 691 / 525

Step 3:
691 divided by 525 is 1 with a remainder of 166.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 525 from 691 to get 166.
Fetch the next digit (9) from the dividend, attach it to 166 and continue: 1669 / 525

Going ahead to step 4:
525 goes into 1669 3 times with a remainder of 94.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtracting 1575 from 1669 leaves us with 94.
Bring next digit (0) of the dividend behind the 94 and repeat the process: 940 / 525

Advancing to step 5:
940 divided by 525 is 1 with a remainder of 415.
The number 1 becomes the next digit in our result. 
Result so far: 131.0
Subtracting 525 from 940 leaves us with 415.
Take the next digit (5) from the dividend and append it to 415, then repeat: 4155 / 525

Going ahead to step 6:
525 can be fit into 4155 7 times, resulting in a remainder of 480.
Use 7 as the next digit of our solution. 
Result so far: 1317.0
If we take 3675 away from 4155, we end up with 480.
Include the next digit (3) from the dividend after 480, then repeat: 4803 / 525

Let's proceed to step 7:
525 goes into 4803 9 times with a remainder of 78.
Put 9 as the next digit of the answer. 
Result so far: 13179.0
The remainder is 78 after subtracting 4725 from 4803.
Fetch the next digit (9) from the dividend, attach it to 78 and continue: 789 / 525

Advancing to step 8:
When dividing 789 by 525, we get 1 with a remainder of 264.
Write down 1 as next digit of the result. 
Result so far: 131791.0
If we take 525 away from 789, we end up with 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

On to step 9:
525 can be fit into 2640 5 times, resulting in a remainder of 15.
The next digit of our result is 5. 
Result so far: 131791.5
Subtract 2625 from 2640 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 10:
525 goes into 150 0 times with a remainder of 150.
The next digit of our result is 0. 
Result so far: 131791.5
If we take 0 away from 150, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 11:
When dividing 1500 by 525, we get 2 with a remainder of 450.
Write down 2 as next digit of the result. 
Result so far: 131791.502
Deduct 1050 from 1500 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.

Let's proceed to step 12:
The number 525 fits into 4500 8 times, leaving a remainder of 300.
Record the quotient 8 as the next digit in the result. 
Result so far: 131791.5028
Deduct 4200 from 4500 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 13:
If we divide 3000 by 525, we get 5 and a remainder of 375.
The next digit of our result is 5. 
Result so far: 131791.50285
Subtracting 2625 from 3000 leaves us with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Moving on to step 14:
If we divide 3750 by 525, we get 7 and a remainder of 75.
The number 7 becomes the next digit in our result. 
Result so far: 131791.502857
Subtract 3675 from 3750 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 15:
525 can be fit into 750 1 times, resulting in a remainder of 225.
The next digit of our result is 1. 
Result so far: 131791.5028571
If we subtract 525 from 750, we get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Step 16:
525 can be fit into 2250 4 times, resulting in a remainder of 150.
The number 4 becomes the next digit in our result. 
Result so far: 131791.50285714
Deduct 2100 from 2250 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Our division results in 131791.50285714 with a remaining 1.5e-07.