Let's divide 76293 by 91
The aim is to understand the frequency of 91 in 76293.

Step 1:
When dividing 7 by 91, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 91

Let's proceed to step 2:
76 divided by 91 is 0 with a remainder of 76.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 76 to get 76.
Grab the next digit (2) from the dividend, add it to 76, then carry on: 762 / 91

Moving on to step 3:
91 goes into 762 8 times with a remainder of 34.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 728 from 762 to get 34.
Grab the next digit (9) from the dividend, add it to 34, then carry on: 349 / 91

On to step 4:
The number 91 fits into 349 3 times, leaving a remainder of 76.
Record the quotient 3 as the next digit in the result. 
Result so far: 83.0
Deduct 273 from 349 and we're left with 76.
Take the next digit (3) from the dividend and append it to 76, then repeat: 763 / 91

Step 5:
91 can be fit into 763 8 times, resulting in a remainder of 35.
The number 8 becomes the next digit in our result. 
Result so far: 838.0
Deduct 728 from 763 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 6:
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: 838.3
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 7:
91 goes into 770 8 times with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 838.38
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.

On to step 8:
420 divided by 91 is 4 with a remainder of 56.
The next digit of our result is 4. 
Result so far: 838.384
Subtract 364 from 420 to 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.

Moving on to step 9:
560 divided by 91 is 6 with a remainder of 14.
The next digit of our result is 6. 
Result so far: 838.3846
Subtract 546 from 560 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 10:
When dividing 140 by 91, we get 1 with a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 838.38461
Subtracting 91 from 140 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 11:
If we divide 490 by 91, we get 5 and a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 838.384615
If we take 455 away from 490, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 12:
If we divide 350 by 91, we get 3 and a remainder of 77.
Write down 3 as next digit of the result. 
Result so far: 838.3846153
If we take 273 away from 350, we end up with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Step 13:
91 goes into 770 8 times with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 838.38461538
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.

Our division results in 838.38461538 with a remaining 4.2e-08.