Let's divide 86269062 by 520
The aim is to understand the frequency of 520 in 86269062.

On to step 1:
When dividing 8 by 520, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 520

Step 2:
If we divide 86 by 520, we get 0 and a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Take the next digit (2) from the dividend and append it to 86, then repeat: 862 / 520

Advancing to step 3:
If we divide 862 by 520, we get 1 and a remainder of 342.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 520 from 862 and we're left with 342.
Grab the next digit (6) from the dividend, add it to 342, then carry on: 3426 / 520

Going ahead to step 4:
The number 520 fits into 3426 6 times, leaving a remainder of 306.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
The remainder is 306 after subtracting 3120 from 3426.
Bring next digit (9) of the dividend behind the 306 and repeat the process: 3069 / 520

Let's proceed to step 5:
3069 divided by 520 is 5 with a remainder of 469.
The number 5 becomes the next digit in our result. 
Result so far: 165.0
If we subtract 2600 from 3069, we get 469.
Append the next digit (0) from the dividend to 469 and continue with: 4690 / 520

Moving on to step 6:
4690 divided by 520 is 9 with a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 1659.0
Deduct 4680 from 4690 and we're left with 10.
Bring next digit (6) of the dividend behind the 10 and repeat the process: 106 / 520

Advancing to step 7:
The number 520 fits into 106 0 times, leaving a remainder of 106.
The number 0 becomes the next digit in our result. 
Result so far: 16590.0
Deduct 0 from 106 and we're left with 106.
Bring next digit (2) of the dividend behind the 106 and repeat the process: 1062 / 520

Moving on to step 8:
When dividing 1062 by 520, we get 2 with a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 165902.0
If we take 1040 away from 1062, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 9:
520 can be fit into 220 0 times, resulting in a remainder of 220.
Put 0 as the next digit of the answer. 
Result so far: 165902.0
Subtract 0 from 220 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 10:
520 can be fit into 2200 4 times, resulting in a remainder of 120.
Record the quotient 4 as the next digit in the result. 
Result so far: 165902.04
If we subtract 2080 from 2200, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 11:
1200 divided by 520 is 2 with a remainder of 160.
The number 2 becomes the next digit in our result. 
Result so far: 165902.042
Subtract 1040 from 1200 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 12:
520 can be fit into 1600 3 times, resulting in a remainder of 40.
Record the quotient 3 as the next digit in the result. 
Result so far: 165902.0423
The remainder is 40 after subtracting 1560 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 13:
400 divided by 520 is 0 with a remainder of 400.
The next digit of our result is 0. 
Result so far: 165902.0423
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 14:
When dividing 4000 by 520, we get 7 with a remainder of 360.
Record the quotient 7 as the next digit in the result. 
Result so far: 165902.042307
If we take 3640 away from 4000, we end up 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.

Moving on to step 15:
When dividing 3600 by 520, we get 6 with a remainder of 480.
Use 6 as the next digit of our solution. 
Result so far: 165902.0423076
If we subtract 3120 from 3600, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 16:
4800 divided by 520 is 9 with a remainder of 120.
Write down 9 as next digit of the result. 
Result so far: 165902.04230769
The remainder is 120 after subtracting 4680 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

In conclusion, the division gives 165902.04230769 with a balance of 1.2e-07.