85557971 divided by 86 
The aim is to understand the frequency of 86 in 85557971.

Step 1:
86 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 take 0 away from 8, we end up with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 86

Step 2:
If we divide 85 by 86, we get 0 and a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 85 to get 85.
Include the next digit (5) from the dividend after 85, then repeat: 855 / 86

Moving on to step 3:
86 goes into 855 9 times with a remainder of 81.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtracting 774 from 855 leaves us with 81.
Fetch the next digit (5) from the dividend, attach it to 81 and continue: 815 / 86

Advancing to step 4:
86 can be fit into 815 9 times, resulting in a remainder of 41.
Use 9 as the next digit of our solution. 
Result so far: 99.0
The remainder is 41 after subtracting 774 from 815.
Append the next digit (7) from the dividend to 41 and continue with: 417 / 86

Moving on to step 5:
86 can be fit into 417 4 times, resulting in a remainder of 73.
Put 4 as the next digit of the answer. 
Result so far: 994.0
Deduct 344 from 417 and we're left with 73.
Grab the next digit (9) from the dividend, add it to 73, then carry on: 739 / 86

Advancing to step 6:
If we divide 739 by 86, we get 8 and a remainder of 51.
Put 8 as the next digit of the answer. 
Result so far: 9948.0
The remainder is 51 after subtracting 688 from 739.
Grab the next digit (7) from the dividend, add it to 51, then carry on: 517 / 86

Moving on to step 7:
517 divided by 86 is 6 with a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 99486.0
If we subtract 516 from 517, we get 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 86

Moving on to step 8:
86 goes into 11 0 times with a remainder of 11.
Record the quotient 0 as the next digit in the result. 
Result so far: 994860.0
If we subtract 0 from 11, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 9:
86 can be fit into 110 1 times, resulting in a remainder of 24.
Put 1 as the next digit of the answer. 
Result so far: 994860.1
Subtracting 86 from 110 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
240 divided by 86 is 2 with a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 994860.12
Subtracting 172 from 240 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 11:
680 divided by 86 is 7 with a remainder of 78.
Use 7 as the next digit of our solution. 
Result so far: 994860.127
Deduct 602 from 680 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 12:
780 divided by 86 is 9 with a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 994860.1279
The remainder is 6 after subtracting 774 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 13:
86 can be fit into 60 0 times, resulting in a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 994860.1279
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 14:
When dividing 600 by 86, we get 6 with a remainder of 84.
The number 6 becomes the next digit in our result. 
Result so far: 994860.127906
If we subtract 516 from 600, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Advancing to step 15:
If we divide 840 by 86, we get 9 and a remainder of 66.
The next digit of our result is 9. 
Result so far: 994860.1279069
If we subtract 774 from 840, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 16:
If we divide 660 by 86, we get 7 and a remainder of 58.
The next digit of our result is 7. 
Result so far: 994860.12790697
Subtract 602 from 660 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

In conclusion, the division gives 994860.12790697 with a balance of 5.8e-08.