Let's divide 83530281 by 308
The aim is to understand the frequency of 308 in 83530281.

Step 1:
308 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 308

Let's proceed to step 2:
308 goes into 83 0 times with a remainder of 83.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 83, we end up with 83.
Fetch the next digit (5) from the dividend, attach it to 83 and continue: 835 / 308

Step 3:
835 divided by 308 is 2 with a remainder of 219.
The next digit of our result is 2. 
Result so far: 2.0
If we take 616 away from 835, we end up with 219.
Include the next digit (3) from the dividend after 219, then repeat: 2193 / 308

Going ahead to step 4:
The number 308 fits into 2193 7 times, leaving a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 27.0
Subtract 2156 from 2193 to get 37.
Include the next digit (0) from the dividend after 37, then repeat: 370 / 308

Let's proceed to step 5:
The number 308 fits into 370 1 times, leaving a remainder of 62.
Put 1 as the next digit of the answer. 
Result so far: 271.0
Subtract 308 from 370 to get 62.
Grab the next digit (2) from the dividend, add it to 62, then carry on: 622 / 308

Advancing to step 6:
The number 308 fits into 622 2 times, leaving a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 2712.0
If we subtract 616 from 622, we get 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 308

Advancing to step 7:
308 can be fit into 68 0 times, resulting in a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 27120.0
The remainder is 68 after subtracting 0 from 68.
Take the next digit (1) from the dividend and append it to 68, then repeat: 681 / 308

Let's proceed to step 8:
681 divided by 308 is 2 with a remainder of 65.
The number 2 becomes the next digit in our result. 
Result so far: 271202.0
The remainder is 65 after subtracting 616 from 681.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 9:
308 can be fit into 650 2 times, resulting in a remainder of 34.
Write down 2 as next digit of the result. 
Result so far: 271202.2
If we take 616 away from 650, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 10:
When dividing 340 by 308, we get 1 with a remainder of 32.
Write down 1 as next digit of the result. 
Result so far: 271202.21
Subtracting 308 from 340 leaves us 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.

Moving on to step 11:
308 can be fit into 320 1 times, resulting in a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 271202.211
Subtracting 308 from 320 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final result is 271202.211 with a remainder of 0.0012.