91981227 ÷ 308 
The aim is to understand the frequency of 308 in 91981227.

Moving on to step 1:
308 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 308

Step 2:
The number 308 fits into 91 0 times, leaving a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Append the next digit (9) from the dividend to 91 and continue with: 919 / 308

Let's proceed to step 3:
919 divided by 308 is 2 with a remainder of 303.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 616 from 919 and we're left with 303.
Take the next digit (8) from the dividend and append it to 303, then repeat: 3038 / 308

Advancing to step 4:
308 can be fit into 3038 9 times, resulting in a remainder of 266.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
Subtracting 2772 from 3038 leaves us with 266.
Include the next digit (1) from the dividend after 266, then repeat: 2661 / 308

Moving on to step 5:
When dividing 2661 by 308, we get 8 with a remainder of 197.
Use 8 as the next digit of our solution. 
Result so far: 298.0
Subtract 2464 from 2661 to get 197.
Take the next digit (2) from the dividend and append it to 197, then repeat: 1972 / 308

Moving on to step 6:
308 goes into 1972 6 times with a remainder of 124.
Record the quotient 6 as the next digit in the result. 
Result so far: 2986.0
Subtract 1848 from 1972 to get 124.
Take the next digit (2) from the dividend and append it to 124, then repeat: 1242 / 308

Step 7:
308 goes into 1242 4 times with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 29864.0
Subtract 1232 from 1242 to get 10.
Grab the next digit (7) from the dividend, add it to 10, then carry on: 107 / 308

Moving on to step 8:
308 can be fit into 107 0 times, resulting in a remainder of 107.
The next digit of our result is 0. 
Result so far: 298640.0
Subtracting 0 from 107 leaves us with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Moving on to step 9:
If we divide 1070 by 308, we get 3 and a remainder of 146.
Write down 3 as next digit of the result. 
Result so far: 298640.3
The remainder is 146 after subtracting 924 from 1070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Advancing to step 10:
The number 308 fits into 1460 4 times, leaving a remainder of 228.
Put 4 as the next digit of the answer. 
Result so far: 298640.34
If we subtract 1232 from 1460, we get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Step 11:
When dividing 2280 by 308, we get 7 with a remainder of 124.
Use 7 as the next digit of our solution. 
Result so far: 298640.347
The remainder is 124 after subtracting 2156 from 2280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Going ahead to step 12:
When dividing 1240 by 308, we get 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 298640.3474
Deduct 1232 from 1240 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 13:
When dividing 80 by 308, we get 0 with a remainder of 80.
The next digit of our result is 0. 
Result so far: 298640.3474
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 14:
When dividing 800 by 308, we get 2 with a remainder of 184.
Write down 2 as next digit of the result. 
Result so far: 298640.347402
Subtracting 616 from 800 leaves us with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 15:
308 goes into 1840 5 times with a remainder of 300.
Use 5 as the next digit of our solution. 
Result so far: 298640.3474025
The remainder is 300 after subtracting 1540 from 1840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 16:
308 goes into 3000 9 times with a remainder of 228.
The number 9 becomes the next digit in our result. 
Result so far: 298640.34740259
Subtracting 2772 from 3000 leaves us with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

After the division, we end up with 298640.34740259 and a remainder of 2.28e-07.