We look at the division of 746793 by 91 
The aim is to understand the frequency of 91 in 746793.

On to step 1:
91 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 91

Advancing to step 2:
74 divided by 91 is 0 with a remainder of 74.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 74 after subtracting 0 from 74.
Include the next digit (6) from the dividend after 74, then repeat: 746 / 91

Let's proceed to step 3:
91 can be fit into 746 8 times, resulting in a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 728 from 746 leaves us with 18.
Include the next digit (7) from the dividend after 18, then repeat: 187 / 91

Step 4:
187 divided by 91 is 2 with a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
If we take 182 away from 187, we end up with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 91

Let's proceed to step 5:
59 divided by 91 is 0 with a remainder of 59.
Use 0 as the next digit of our solution. 
Result so far: 820.0
Subtracting 0 from 59 leaves us with 59.
Include the next digit (3) from the dividend after 59, then repeat: 593 / 91

Advancing to step 6:
When dividing 593 by 91, we get 6 with a remainder of 47.
Use 6 as the next digit of our solution. 
Result so far: 8206.0
Subtract 546 from 593 to 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.

Advancing to step 7:
If we divide 470 by 91, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 8206.5
If we take 455 away from 470, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 8:
The number 91 fits into 150 1 times, leaving a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 8206.51
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.

Moving on to step 9:
If we divide 590 by 91, we get 6 and a remainder of 44.
The next digit of our result is 6. 
Result so far: 8206.516
Subtract 546 from 590 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 10:
91 can be fit into 440 4 times, resulting in a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 8206.5164
Deduct 364 from 440 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 11:
91 goes into 760 8 times with a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 8206.51648
If we take 728 away from 760, we end up 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.

Going ahead to step 12:
If we divide 320 by 91, we get 3 and a remainder of 47.
Use 3 as the next digit of our solution. 
Result so far: 8206.516483
The remainder is 47 after subtracting 273 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 13:
If we divide 470 by 91, we get 5 and a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 8206.5164835
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.

Step 14:
150 divided by 91 is 1 with a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 8206.51648351
The remainder is 59 after subtracting 91 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Our division results in 8206.51648351 with a remaining 5.9e-08.