We look at the division of 969567 by 91 
The aim is to understand the frequency of 91 in 969567.

Let's proceed to step 1:
91 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 91

Going ahead to step 2:
91 goes into 96 1 times with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 91 from 96, we get 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 91

Let's proceed to step 3:
If we divide 59 by 91, we get 0 and a remainder of 59.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 59 leaves us with 59.
Bring next digit (5) of the dividend behind the 59 and repeat the process: 595 / 91

Going ahead to step 4:
The number 91 fits into 595 6 times, leaving a remainder of 49.
Use 6 as the next digit of our solution. 
Result so far: 106.0
Subtracting 546 from 595 leaves us with 49.
Grab the next digit (6) from the dividend, add it to 49, then carry on: 496 / 91

On to step 5:
If we divide 496 by 91, we get 5 and a remainder of 41.
Use 5 as the next digit of our solution. 
Result so far: 1065.0
Subtract 455 from 496 to get 41.
Take the next digit (7) from the dividend and append it to 41, then repeat: 417 / 91

Advancing to step 6:
91 can be fit into 417 4 times, resulting in a remainder of 53.
Record the quotient 4 as the next digit in the result. 
Result so far: 10654.0
Deduct 364 from 417 and we're left with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Advancing to step 7:
91 goes into 530 5 times with a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 10654.5
If we subtract 455 from 530, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 8:
When dividing 750 by 91, we get 8 with a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 10654.58
Subtracting 728 from 750 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 9:
91 goes into 220 2 times with a remainder of 38.
Use 2 as the next digit of our solution. 
Result so far: 10654.582
Subtract 182 from 220 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 10:
The number 91 fits into 380 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 10654.5824
Subtract 364 from 380 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 11:
91 goes into 160 1 times with a remainder of 69.
The number 1 becomes the next digit in our result. 
Result so far: 10654.58241
The remainder is 69 after subtracting 91 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 12:
The number 91 fits into 690 7 times, leaving a remainder of 53.
Put 7 as the next digit of the answer. 
Result so far: 10654.582417
Subtract 637 from 690 to get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Advancing to step 13:
530 divided by 91 is 5 with a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 10654.5824175
If we subtract 455 from 530, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 14:
91 can be fit into 750 8 times, resulting in a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 10654.58241758
If we take 728 away from 750, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 10654.58241758, with a leftover of 2.2e-08.