We divide 901992 by 86
The aim is to understand the frequency of 86 in 901992.

Moving on to step 1:
9 divided by 86 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 86

Going ahead to step 2:
86 goes into 90 1 times with a remainder of 4.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 86 from 90 leaves us with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 86

Moving on to step 3:
86 can be fit into 41 0 times, resulting in a remainder of 41.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 41 leaves us with 41.
Take the next digit (9) from the dividend and append it to 41, then repeat: 419 / 86

Going ahead to step 4:
86 can be fit into 419 4 times, resulting in a remainder of 75.
The number 4 becomes the next digit in our result. 
Result so far: 104.0
If we subtract 344 from 419, we get 75.
Include the next digit (9) from the dividend after 75, then repeat: 759 / 86

On to step 5:
759 divided by 86 is 8 with a remainder of 71.
Put 8 as the next digit of the answer. 
Result so far: 1048.0
If we take 688 away from 759, we end up with 71.
Bring next digit (2) of the dividend behind the 71 and repeat the process: 712 / 86

Let's proceed to step 6:
86 goes into 712 8 times with a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 10488.0
Subtract 688 from 712 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 7:
86 goes into 240 2 times with a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 10488.2
If we take 172 away from 240, we end up 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.

Going ahead to step 8:
680 divided by 86 is 7 with a remainder of 78.
Record the quotient 7 as the next digit in the result. 
Result so far: 10488.27
If we take 602 away from 680, we end up 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.

Going ahead to step 9:
86 can be fit into 780 9 times, resulting in a remainder of 6.
Use 9 as the next digit of our solution. 
Result so far: 10488.279
If we take 774 away from 780, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
86 can be fit into 60 0 times, resulting in a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 10488.279
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
The number 86 fits into 600 6 times, leaving a remainder of 84.
The next digit of our result is 6. 
Result so far: 10488.27906
The remainder is 84 after subtracting 516 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 12:
840 divided by 86 is 9 with a remainder of 66.
The next digit of our result is 9. 
Result so far: 10488.279069
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 13:
If we divide 660 by 86, we get 7 and a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 10488.2790697
If we take 602 away from 660, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 14:
580 divided by 86 is 6 with a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 10488.27906976
Deduct 516 from 580 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final result is 10488.27906976 with a remainder of 6.4e-08.