972958 ÷ 91 
The aim is to understand the frequency of 91 in 972958.

Moving on to step 1:
9 divided by 91 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 91

Advancing to step 2:
The number 91 fits into 97 1 times, leaving a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 91 from 97 leaves us with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 91

Step 3:
91 goes into 62 0 times with a remainder of 62.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 62 and we're left with 62.
Bring next digit (9) of the dividend behind the 62 and repeat the process: 629 / 91

On to step 4:
The number 91 fits into 629 6 times, leaving a remainder of 83.
Write down 6 as next digit of the result. 
Result so far: 106.0
The remainder is 83 after subtracting 546 from 629.
Include the next digit (5) from the dividend after 83, then repeat: 835 / 91

Moving on to step 5:
When dividing 835 by 91, we get 9 with a remainder of 16.
Put 9 as the next digit of the answer. 
Result so far: 1069.0
If we subtract 819 from 835, we get 16.
Take the next digit (8) from the dividend and append it to 16, then repeat: 168 / 91

Going ahead to step 6:
The number 91 fits into 168 1 times, leaving a remainder of 77.
The next digit of our result is 1. 
Result so far: 10691.0
Subtract 91 from 168 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Moving on to step 7:
91 goes into 770 8 times with a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 10691.8
Subtracting 728 from 770 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 8:
If we divide 420 by 91, we get 4 and a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 10691.84
The remainder is 56 after subtracting 364 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 9:
When dividing 560 by 91, we get 6 with a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 10691.846
Subtracting 546 from 560 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 10:
91 goes into 140 1 times with a remainder of 49.
Put 1 as the next digit of the answer. 
Result so far: 10691.8461
The remainder is 49 after subtracting 91 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 11:
If we divide 490 by 91, we get 5 and a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 10691.84615
The remainder is 35 after subtracting 455 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 12:
When dividing 350 by 91, we get 3 with a remainder of 77.
Record the quotient 3 as the next digit in the result. 
Result so far: 10691.846153
The remainder is 77 after subtracting 273 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Going ahead to step 13:
91 goes into 770 8 times with a remainder of 42.
Write down 8 as next digit of the result. 
Result so far: 10691.8461538
If we take 728 away from 770, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 14:
91 goes into 420 4 times with a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 10691.84615384
If we subtract 364 from 420, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

After the division, we end up with 10691.84615384 and a remainder of 5.6e-08.