Let's divide 531211 by 91
The aim is to understand the frequency of 91 in 531211.

Step 1:
The number 91 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 91

Let's proceed to step 2:
When dividing 53 by 91, we get 0 with a remainder of 53.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Take the next digit (1) from the dividend and append it to 53, then repeat: 531 / 91

On to step 3:
91 can be fit into 531 5 times, resulting in a remainder of 76.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 455 from 531 to get 76.
Take the next digit (2) from the dividend and append it to 76, then repeat: 762 / 91

Step 4:
91 can be fit into 762 8 times, resulting in a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 58.0
If we subtract 728 from 762, we get 34.
Bring next digit (1) of the dividend behind the 34 and repeat the process: 341 / 91

Moving on to step 5:
If we divide 341 by 91, we get 3 and a remainder of 68.
Use 3 as the next digit of our solution. 
Result so far: 583.0
Deduct 273 from 341 and we're left with 68.
Take the next digit (1) from the dividend and append it to 68, then repeat: 681 / 91

Moving on to step 6:
If we divide 681 by 91, we get 7 and a remainder of 44.
Put 7 as the next digit of the answer. 
Result so far: 5837.0
Subtracting 637 from 681 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 7:
If we divide 440 by 91, we get 4 and a remainder of 76.
Record the quotient 4 as the next digit in the result. 
Result so far: 5837.4
The remainder is 76 after subtracting 364 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 8:
The number 91 fits into 760 8 times, leaving a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 5837.48
Subtract 728 from 760 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 9:
320 divided by 91 is 3 with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 5837.483
If we subtract 273 from 320, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Let's proceed to step 10:
91 goes into 470 5 times with a remainder of 15.
The next digit of our result is 5. 
Result so far: 5837.4835
If we subtract 455 from 470, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 11:
The number 91 fits into 150 1 times, leaving a remainder of 59.
Put 1 as the next digit of the answer. 
Result so far: 5837.48351
If we subtract 91 from 150, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 12:
When dividing 590 by 91, we get 6 with a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 5837.483516
Deduct 546 from 590 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 13:
91 can be fit into 440 4 times, resulting in a remainder of 76.
The next digit of our result is 4. 
Result so far: 5837.4835164
The remainder is 76 after subtracting 364 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 14:
91 goes into 760 8 times with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 5837.48351648
Deduct 728 from 760 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Our division results in 5837.48351648 with a remaining 3.2e-08.