We look at the division of 369228 by 91 
The aim is to understand the frequency of 91 in 369228.

Advancing to step 1:
3 divided by 91 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 91

Moving on to step 2:
If we divide 36 by 91, we get 0 and a remainder of 36.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 36 leaves us with 36.
Append the next digit (9) from the dividend to 36 and continue with: 369 / 91

Advancing to step 3:
91 can be fit into 369 4 times, resulting in a remainder of 5.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 364 from 369, we get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 91

Advancing to step 4:
If we divide 52 by 91, we get 0 and a remainder of 52.
Use 0 as the next digit of our solution. 
Result so far: 40.0
If we subtract 0 from 52, we get 52.
Bring next digit (2) of the dividend behind the 52 and repeat the process: 522 / 91

On to step 5:
If we divide 522 by 91, we get 5 and a remainder of 67.
Put 5 as the next digit of the answer. 
Result so far: 405.0
If we take 455 away from 522, we end up with 67.
Take the next digit (8) from the dividend and append it to 67, then repeat: 678 / 91

Going ahead to step 6:
91 can be fit into 678 7 times, resulting in a remainder of 41.
The number 7 becomes the next digit in our result. 
Result so far: 4057.0
Subtract 637 from 678 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 7:
The number 91 fits into 410 4 times, leaving a remainder of 46.
The next digit of our result is 4. 
Result so far: 4057.4
Deduct 364 from 410 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 8:
The number 91 fits into 460 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 4057.45
Subtracting 455 from 460 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
50 divided by 91 is 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 4057.45
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 10:
91 can be fit into 500 5 times, resulting in a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 4057.4505
Subtracting 455 from 500 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 11:
91 can be fit into 450 4 times, resulting in a remainder of 86.
The number 4 becomes the next digit in our result. 
Result so far: 4057.45054
Subtract 364 from 450 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Let's proceed to step 12:
If we divide 860 by 91, we get 9 and a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 4057.450549
The remainder is 41 after subtracting 819 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 13:
410 divided by 91 is 4 with a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 4057.4505494
If we subtract 364 from 410, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 14:
When dividing 460 by 91, we get 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 4057.45054945
Subtract 455 from 460 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 4057.45054945, and the remainder is 5e-09.