We're dividing 707122 by 91 
The aim is to understand the frequency of 91 in 707122.

Moving on to step 1:
91 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 91

Step 2:
91 can be fit into 70 0 times, resulting in a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 70 after subtracting 0 from 70.
Take the next digit (7) from the dividend and append it to 70, then repeat: 707 / 91

Going ahead to step 3:
If we divide 707 by 91, we get 7 and a remainder of 70.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 637 from 707 leaves us with 70.
Take the next digit (1) from the dividend and append it to 70, then repeat: 701 / 91

On to step 4:
The number 91 fits into 701 7 times, leaving a remainder of 64.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
If we subtract 637 from 701, we get 64.
Take the next digit (2) from the dividend and append it to 64, then repeat: 642 / 91

Let's proceed to step 5:
91 can be fit into 642 7 times, resulting in a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 777.0
If we subtract 637 from 642, we get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 91

Let's proceed to step 6:
91 goes into 52 0 times with a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 7770.0
If we subtract 0 from 52, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 7:
520 divided by 91 is 5 with a remainder of 65.
The next digit of our result is 5. 
Result so far: 7770.5
Subtract 455 from 520 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 8:
The number 91 fits into 650 7 times, leaving a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 7770.57
Deduct 637 from 650 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 9:
When dividing 130 by 91, we get 1 with a remainder of 39.
Record the quotient 1 as the next digit in the result. 
Result so far: 7770.571
If we subtract 91 from 130, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 10:
The number 91 fits into 390 4 times, leaving a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 7770.5714
The remainder is 26 after subtracting 364 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 11:
91 can be fit into 260 2 times, resulting in a remainder of 78.
The next digit of our result is 2. 
Result so far: 7770.57142
Deduct 182 from 260 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 12:
780 divided by 91 is 8 with a remainder of 52.
Record the quotient 8 as the next digit in the result. 
Result so far: 7770.571428
The remainder is 52 after subtracting 728 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 13:
If we divide 520 by 91, we get 5 and a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 7770.5714285
Deduct 455 from 520 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 14:
When dividing 650 by 91, we get 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 7770.57142857
Deduct 637 from 650 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final result is 7770.57142857 with a remainder of 1.3e-08.