Let's divide 214585 by 91
The aim is to understand the frequency of 91 in 214585.

Going ahead to step 1:
If we divide 2 by 91, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 91

Going ahead to step 2:
91 can be fit into 21 0 times, resulting in a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (4) from the dividend and append it to 21, then repeat: 214 / 91

Let's proceed to step 3:
The number 91 fits into 214 2 times, leaving a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 32 after subtracting 182 from 214.
Bring next digit (5) of the dividend behind the 32 and repeat the process: 325 / 91

Let's proceed to step 4:
When dividing 325 by 91, we get 3 with a remainder of 52.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Subtracting 273 from 325 leaves us with 52.
Grab the next digit (8) from the dividend, add it to 52, then carry on: 528 / 91

Step 5:
The number 91 fits into 528 5 times, leaving a remainder of 73.
The next digit of our result is 5. 
Result so far: 235.0
Deduct 455 from 528 and we're left with 73.
Append the next digit (5) from the dividend to 73 and continue with: 735 / 91

Moving on to step 6:
91 goes into 735 8 times with a remainder of 7.
Use 8 as the next digit of our solution. 
Result so far: 2358.0
Subtract 728 from 735 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
If we divide 70 by 91, we get 0 and a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 2358.0
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 8:
If we divide 700 by 91, we get 7 and a remainder of 63.
The number 7 becomes the next digit in our result. 
Result so far: 2358.07
Subtracting 637 from 700 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 9:
When dividing 630 by 91, we get 6 with a remainder of 84.
Put 6 as the next digit of the answer. 
Result so far: 2358.076
If we take 546 away from 630, we end up with 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 10:
840 divided by 91 is 9 with a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 2358.0769
If we subtract 819 from 840, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 11:
The number 91 fits into 210 2 times, leaving a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 2358.07692
Deduct 182 from 210 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 12:
When dividing 280 by 91, we get 3 with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 2358.076923
Subtract 273 from 280 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 13:
91 goes into 70 0 times with a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 2358.076923
If we take 0 away from 70, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 14:
700 divided by 91 is 7 with a remainder of 63.
The number 7 becomes the next digit in our result. 
Result so far: 2358.07692307
Subtracting 637 from 700 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

The final outcome is 2358.07692307, with a leftover of 6.3e-08.