83938441 divided by 309 
The aim is to understand the frequency of 309 in 83938441.

Step 1:
309 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 309

Let's proceed to step 2:
When dividing 83 by 309, we get 0 with a remainder of 83.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 83 and we're left with 83.
Append the next digit (9) from the dividend to 83 and continue with: 839 / 309

On to step 3:
839 divided by 309 is 2 with a remainder of 221.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 221 after subtracting 618 from 839.
Include the next digit (3) from the dividend after 221, then repeat: 2213 / 309

Step 4:
2213 divided by 309 is 7 with a remainder of 50.
The next digit of our result is 7. 
Result so far: 27.0
Subtracting 2163 from 2213 leaves us with 50.
Grab the next digit (8) from the dividend, add it to 50, then carry on: 508 / 309

On to step 5:
309 can be fit into 508 1 times, resulting in a remainder of 199.
Use 1 as the next digit of our solution. 
Result so far: 271.0
Subtract 309 from 508 to get 199.
Bring next digit (4) of the dividend behind the 199 and repeat the process: 1994 / 309

On to step 6:
1994 divided by 309 is 6 with a remainder of 140.
Put 6 as the next digit of the answer. 
Result so far: 2716.0
Subtracting 1854 from 1994 leaves us with 140.
Append the next digit (4) from the dividend to 140 and continue with: 1404 / 309

On to step 7:
When dividing 1404 by 309, we get 4 with a remainder of 168.
The number 4 becomes the next digit in our result. 
Result so far: 27164.0
Subtracting 1236 from 1404 leaves us with 168.
Bring next digit (1) of the dividend behind the 168 and repeat the process: 1681 / 309

Let's proceed to step 8:
309 can be fit into 1681 5 times, resulting in a remainder of 136.
Use 5 as the next digit of our solution. 
Result so far: 271645.0
If we subtract 1545 from 1681, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 9:
1360 divided by 309 is 4 with a remainder of 124.
Write down 4 as next digit of the result. 
Result so far: 271645.4
If we subtract 1236 from 1360, we get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Let's proceed to step 10:
309 can be fit into 1240 4 times, resulting in a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 271645.44
Subtracting 1236 from 1240 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 271645.44 with a remainder of 0.004.