838039 ÷ 39 
The aim is to understand the frequency of 39 in 838039.

Going ahead to step 1:
If we divide 8 by 39, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 39

Moving on to step 2:
83 divided by 39 is 2 with a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 5 after subtracting 78 from 83.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 39

Advancing to step 3:
The number 39 fits into 58 1 times, leaving a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 21.0
The remainder is 19 after subtracting 39 from 58.
Bring next digit (0) of the dividend behind the 19 and repeat the process: 190 / 39

On to step 4:
The number 39 fits into 190 4 times, leaving a remainder of 34.
Use 4 as the next digit of our solution. 
Result so far: 214.0
Subtracting 156 from 190 leaves us with 34.
Include the next digit (3) from the dividend after 34, then repeat: 343 / 39

Moving on to step 5:
The number 39 fits into 343 8 times, leaving a remainder of 31.
The next digit of our result is 8. 
Result so far: 2148.0
Subtract 312 from 343 to get 31.
Fetch the next digit (9) from the dividend, attach it to 31 and continue: 319 / 39

Step 6:
39 can be fit into 319 8 times, resulting in a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 21488.0
Subtract 312 from 319 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
39 can be fit into 70 1 times, resulting in a remainder of 31.
Record the quotient 1 as the next digit in the result. 
Result so far: 21488.1
Deduct 39 from 70 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 8:
If we divide 310 by 39, we get 7 and a remainder of 37.
The next digit of our result is 7. 
Result so far: 21488.17
The remainder is 37 after subtracting 273 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 9:
The number 39 fits into 370 9 times, leaving a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 21488.179
If we take 351 away from 370, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 10:
When dividing 190 by 39, we get 4 with a remainder of 34.
The next digit of our result is 4. 
Result so far: 21488.1794
If we subtract 156 from 190, we get 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 11:
39 goes into 340 8 times with a remainder of 28.
Use 8 as the next digit of our solution. 
Result so far: 21488.17948
If we subtract 312 from 340, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 12:
39 goes into 280 7 times with a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 21488.179487
Deduct 273 from 280 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 13:
If we divide 70 by 39, we get 1 and a remainder of 31.
The number 1 becomes the next digit in our result. 
Result so far: 21488.1794871
If we subtract 39 from 70, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 14:
310 divided by 39 is 7 with a remainder of 37.
Write down 7 as next digit of the result. 
Result so far: 21488.17948717
If we subtract 273 from 310, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

In conclusion, the division gives 21488.17948717 with a balance of 3.7e-08.