We divide 28470692 by 91
The aim is to understand the frequency of 91 in 28470692.

Advancing to step 1:
If we divide 2 by 91, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 91

Going ahead to step 2:
91 can be fit into 28 0 times, resulting in a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 28 and we're left with 28.
Append the next digit (4) from the dividend to 28 and continue with: 284 / 91

Step 3:
284 divided by 91 is 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 273 from 284, we get 11.
Include the next digit (7) from the dividend after 11, then repeat: 117 / 91

Going ahead to step 4:
If we divide 117 by 91, we get 1 and a remainder of 26.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
Subtracting 91 from 117 leaves us with 26.
Bring next digit (0) of the dividend behind the 26 and repeat the process: 260 / 91

Advancing to step 5:
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: 312.0
Subtracting 182 from 260 leaves us with 78.
Include the next digit (6) from the dividend after 78, then repeat: 786 / 91

Step 6:
The number 91 fits into 786 8 times, leaving a remainder of 58.
Put 8 as the next digit of the answer. 
Result so far: 3128.0
If we subtract 728 from 786, we get 58.
Bring next digit (9) of the dividend behind the 58 and repeat the process: 589 / 91

On to step 7:
91 goes into 589 6 times with a remainder of 43.
Use 6 as the next digit of our solution. 
Result so far: 31286.0
If we take 546 away from 589, we end up with 43.
Include the next digit (2) from the dividend after 43, then repeat: 432 / 91

Step 8:
When dividing 432 by 91, we get 4 with a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 312864.0
Subtract 364 from 432 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 9:
91 can be fit into 680 7 times, resulting in a remainder of 43.
The number 7 becomes the next digit in our result. 
Result so far: 312864.7
Deduct 637 from 680 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 10:
The number 91 fits into 430 4 times, leaving a remainder of 66.
Write down 4 as next digit of the result. 
Result so far: 312864.74
Subtracting 364 from 430 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 11:
If we divide 660 by 91, we get 7 and a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 312864.747
Deduct 637 from 660 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 12:
The number 91 fits into 230 2 times, leaving a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 312864.7472
Subtracting 182 from 230 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 13:
480 divided by 91 is 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 312864.74725
Deduct 455 from 480 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 14:
250 divided by 91 is 2 with a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 312864.747252
If we subtract 182 from 250, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 15:
91 goes into 680 7 times with a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 312864.7472527
If we take 637 away from 680, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 16:
91 goes into 430 4 times with a remainder of 66.
Use 4 as the next digit of our solution. 
Result so far: 312864.74725274
Deduct 364 from 430 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The final outcome is 312864.74725274, with a leftover of 6.6e-08.