39992893 ÷ 308 
The aim is to understand the frequency of 308 in 39992893.

Step 1:
3 divided by 308 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 308

Going ahead to step 2:
39 divided by 308 is 0 with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Take the next digit (9) from the dividend and append it to 39, then repeat: 399 / 308

Going ahead to step 3:
308 goes into 399 1 times with a remainder of 91.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 308 from 399 and we're left with 91.
Include the next digit (9) from the dividend after 91, then repeat: 919 / 308

On to step 4:
308 goes into 919 2 times with a remainder of 303.
The next digit of our result is 2. 
Result so far: 12.0
The remainder is 303 after subtracting 616 from 919.
Take the next digit (2) from the dividend and append it to 303, then repeat: 3032 / 308

Let's proceed to step 5:
The number 308 fits into 3032 9 times, leaving a remainder of 260.
Record the quotient 9 as the next digit in the result. 
Result so far: 129.0
If we subtract 2772 from 3032, we get 260.
Grab the next digit (8) from the dividend, add it to 260, then carry on: 2608 / 308

On to step 6:
When dividing 2608 by 308, we get 8 with a remainder of 144.
Put 8 as the next digit of the answer. 
Result so far: 1298.0
Subtract 2464 from 2608 to get 144.
Take the next digit (9) from the dividend and append it to 144, then repeat: 1449 / 308

Let's proceed to step 7:
1449 divided by 308 is 4 with a remainder of 217.
The next digit of our result is 4. 
Result so far: 12984.0
Subtracting 1232 from 1449 leaves us with 217.
Append the next digit (3) from the dividend to 217 and continue with: 2173 / 308

Let's proceed to step 8:
If we divide 2173 by 308, we get 7 and a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 129847.0
Deduct 2156 from 2173 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 9:
If we divide 170 by 308, we get 0 and a remainder of 170.
The next digit of our result is 0. 
Result so far: 129847.0
If we take 0 away from 170, we end up with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 10:
308 can be fit into 1700 5 times, resulting in a remainder of 160.
Record the quotient 5 as the next digit in the result. 
Result so far: 129847.05
Subtracting 1540 from 1700 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 11:
If we divide 1600 by 308, we get 5 and a remainder of 60.
The next digit of our result is 5. 
Result so far: 129847.055
If we take 1540 away from 1600, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 129847.055, with a leftover of 0.006.