Let's divide 276012 by 91
The aim is to understand the frequency of 91 in 276012.

Step 1:
The number 91 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 91

On to step 2:
91 goes into 27 0 times with a remainder of 27.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 27 after subtracting 0 from 27.
Append the next digit (6) from the dividend to 27 and continue with: 276 / 91

On to step 3:
The number 91 fits into 276 3 times, leaving a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 273 from 276, we get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 91

Advancing to step 4:
91 can be fit into 30 0 times, resulting in a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 30.0
Subtracting 0 from 30 leaves us with 30.
Append the next digit (1) from the dividend to 30 and continue with: 301 / 91

On to step 5:
301 divided by 91 is 3 with a remainder of 28.
Put 3 as the next digit of the answer. 
Result so far: 303.0
If we take 273 away from 301, we end up with 28.
Append the next digit (2) from the dividend to 28 and continue with: 282 / 91

On to step 6:
91 can be fit into 282 3 times, resulting in a remainder of 9.
The number 3 becomes the next digit in our result. 
Result so far: 3033.0
If we subtract 273 from 282, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 7:
If we divide 90 by 91, we get 0 and a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 3033.0
The remainder is 90 after subtracting 0 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 8:
91 goes into 900 9 times with a remainder of 81.
Write down 9 as next digit of the result. 
Result so far: 3033.09
If we subtract 819 from 900, we get 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Let's proceed to step 9:
91 goes into 810 8 times with a remainder of 82.
Write down 8 as next digit of the result. 
Result so far: 3033.098
Deduct 728 from 810 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 10:
820 divided by 91 is 9 with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 3033.0989
If we take 819 away from 820, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 11:
10 divided by 91 is 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 3033.0989
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 12:
91 goes into 100 1 times with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 3033.098901
The remainder is 9 after subtracting 91 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 13:
91 can be fit into 90 0 times, resulting in a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 3033.098901
If we subtract 0 from 90, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 14:
91 can be fit into 900 9 times, resulting in a remainder of 81.
Use 9 as the next digit of our solution. 
Result so far: 3033.09890109
Deduct 819 from 900 and we're left with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Our division results in 3033.09890109 with a remaining 8.1e-08.