Let's divide 561875 by 91
The aim is to understand the frequency of 91 in 561875.

Let's proceed to step 1:
When dividing 5 by 91, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 91

Step 2:
91 can be fit into 56 0 times, resulting in a remainder of 56.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 56, we end up with 56.
Take the next digit (1) from the dividend and append it to 56, then repeat: 561 / 91

Advancing to step 3:
When dividing 561 by 91, we get 6 with a remainder of 15.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we subtract 546 from 561, we get 15.
Fetch the next digit (8) from the dividend, attach it to 15 and continue: 158 / 91

Moving on to step 4:
158 divided by 91 is 1 with a remainder of 67.
Use 1 as the next digit of our solution. 
Result so far: 61.0
If we take 91 away from 158, we end up with 67.
Fetch the next digit (7) from the dividend, attach it to 67 and continue: 677 / 91

Let's proceed to step 5:
The number 91 fits into 677 7 times, leaving a remainder of 40.
The number 7 becomes the next digit in our result. 
Result so far: 617.0
Subtracting 637 from 677 leaves us with 40.
Fetch the next digit (5) from the dividend, attach it to 40 and continue: 405 / 91

Moving on to step 6:
91 goes into 405 4 times with a remainder of 41.
Put 4 as the next digit of the answer. 
Result so far: 6174.0
Subtracting 364 from 405 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 7:
91 goes into 410 4 times with a remainder of 46.
The next digit of our result is 4. 
Result so far: 6174.4
If we take 364 away from 410, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 8:
When dividing 460 by 91, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 6174.45
If we subtract 455 from 460, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
When dividing 50 by 91, we get 0 with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 6174.45
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
When dividing 500 by 91, we get 5 with a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 6174.4505
If we take 455 away from 500, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 11:
91 goes into 450 4 times with a remainder of 86.
Write down 4 as next digit of the result. 
Result so far: 6174.45054
Subtract 364 from 450 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Let's proceed to step 12:
When dividing 860 by 91, we get 9 with a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 6174.450549
Deduct 819 from 860 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 13:
91 can be fit into 410 4 times, resulting in a remainder of 46.
Put 4 as the next digit of the answer. 
Result so far: 6174.4505494
Deduct 364 from 410 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 14:
If we divide 460 by 91, we get 5 and a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 6174.45054945
If we subtract 455 from 460, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 6174.45054945 and a remainder of 5e-09.