Let's divide 539564 by 91
The aim is to understand the frequency of 91 in 539564.

Step 1:
5 divided by 91 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 91

Moving on to step 2:
If we divide 53 by 91, we get 0 and a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Bring next digit (9) of the dividend behind the 53 and repeat the process: 539 / 91

Advancing to step 3:
When dividing 539 by 91, we get 5 with a remainder of 84.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 455 from 539 leaves us with 84.
Fetch the next digit (5) from the dividend, attach it to 84 and continue: 845 / 91

Let's proceed to step 4:
The number 91 fits into 845 9 times, leaving a remainder of 26.
Use 9 as the next digit of our solution. 
Result so far: 59.0
Subtract 819 from 845 to get 26.
Append the next digit (6) from the dividend to 26 and continue with: 266 / 91

Let's proceed to step 5:
When dividing 266 by 91, we get 2 with a remainder of 84.
Record the quotient 2 as the next digit in the result. 
Result so far: 592.0
Subtracting 182 from 266 leaves us with 84.
Take the next digit (4) from the dividend and append it to 84, then repeat: 844 / 91

Let's proceed to step 6:
If we divide 844 by 91, we get 9 and a remainder of 25.
Record the quotient 9 as the next digit in the result. 
Result so far: 5929.0
If we subtract 819 from 844, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 7:
250 divided by 91 is 2 with a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 5929.2
If we take 182 away from 250, 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.

Moving on to step 8:
The number 91 fits into 680 7 times, leaving a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 5929.27
Deduct 637 from 680 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 9:
When dividing 430 by 91, we get 4 with a remainder of 66.
Use 4 as the next digit of our solution. 
Result so far: 5929.274
Deduct 364 from 430 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 10:
660 divided by 91 is 7 with a remainder of 23.
The next digit of our result is 7. 
Result so far: 5929.2747
Deduct 637 from 660 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 11:
91 goes into 230 2 times with a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 5929.27472
Subtract 182 from 230 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 12:
91 goes into 480 5 times with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 5929.274725
The remainder is 25 after subtracting 455 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 13:
91 goes into 250 2 times with a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 5929.2747252
If we take 182 away from 250, 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.

Advancing to step 14:
The number 91 fits into 680 7 times, leaving a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 5929.27472527
Subtract 637 from 680 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Our division results in 5929.27472527 with a remaining 4.3e-08.