We look at the division of 85974571 by 869 
The aim is to understand the frequency of 869 in 85974571.

Moving on to step 1:
869 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 869

Advancing to step 2:
85 divided by 869 is 0 with a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Fetch the next digit (9) from the dividend, attach it to 85 and continue: 859 / 869

Moving on to step 3:
When dividing 859 by 869, we get 0 with a remainder of 859.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 859 to get 859.
Include the next digit (7) from the dividend after 859, then repeat: 8597 / 869

Step 4:
When dividing 8597 by 869, we get 9 with a remainder of 776.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtract 7821 from 8597 to get 776.
Fetch the next digit (4) from the dividend, attach it to 776 and continue: 7764 / 869

On to step 5:
7764 divided by 869 is 8 with a remainder of 812.
The next digit of our result is 8. 
Result so far: 98.0
The remainder is 812 after subtracting 6952 from 7764.
Grab the next digit (5) from the dividend, add it to 812, then carry on: 8125 / 869

On to step 6:
If we divide 8125 by 869, we get 9 and a remainder of 304.
Use 9 as the next digit of our solution. 
Result so far: 989.0
Deduct 7821 from 8125 and we're left with 304.
Take the next digit (7) from the dividend and append it to 304, then repeat: 3047 / 869

Advancing to step 7:
869 goes into 3047 3 times with a remainder of 440.
Use 3 as the next digit of our solution. 
Result so far: 9893.0
Deduct 2607 from 3047 and we're left with 440.
Grab the next digit (1) from the dividend, add it to 440, then carry on: 4401 / 869

Moving on to step 8:
4401 divided by 869 is 5 with a remainder of 56.
Record the quotient 5 as the next digit in the result. 
Result so far: 98935.0
The remainder is 56 after subtracting 4345 from 4401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 9:
When dividing 560 by 869, we get 0 with a remainder of 560.
Put 0 as the next digit of the answer. 
Result so far: 98935.0
Subtracting 0 from 560 leaves us with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

On to step 10:
When dividing 5600 by 869, we get 6 with a remainder of 386.
The next digit of our result is 6. 
Result so far: 98935.06
Subtract 5214 from 5600 to get 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Moving on to step 11:
When dividing 3860 by 869, we get 4 with a remainder of 384.
Use 4 as the next digit of our solution. 
Result so far: 98935.064
Subtracting 3476 from 3860 leaves us with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Step 12:
869 goes into 3840 4 times with a remainder of 364.
The number 4 becomes the next digit in our result. 
Result so far: 98935.0644
Subtract 3476 from 3840 to get 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

In conclusion, the division gives 98935.0644 with a balance of 0.00364.