393313 divided by 39 
The aim is to understand the frequency of 39 in 393313.

Advancing to step 1:
If we divide 3 by 39, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 39

Let's proceed to step 2:
If we divide 39 by 39, we get 1 and a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 0 after subtracting 39 from 39.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 39

Moving on to step 3:
The number 39 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 3 to get 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 39

On to step 4:
39 can be fit into 33 0 times, resulting in a remainder of 33.
Use 0 as the next digit of our solution. 
Result so far: 100.0
The remainder is 33 after subtracting 0 from 33.
Bring next digit (1) of the dividend behind the 33 and repeat the process: 331 / 39

On to step 5:
39 can be fit into 331 8 times, resulting in a remainder of 19.
The next digit of our result is 8. 
Result so far: 1008.0
Deduct 312 from 331 and we're left with 19.
Grab the next digit (3) from the dividend, add it to 19, then carry on: 193 / 39

Going ahead to step 6:
193 divided by 39 is 4 with a remainder of 37.
Use 4 as the next digit of our solution. 
Result so far: 10084.0
If we subtract 156 from 193, 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.

Moving on to step 7:
If we divide 370 by 39, we get 9 and a remainder of 19.
Write down 9 as next digit of the result. 
Result so far: 10084.9
The remainder is 19 after subtracting 351 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 8:
When dividing 190 by 39, we get 4 with a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 10084.94
Subtract 156 from 190 to 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 9:
The number 39 fits into 340 8 times, leaving a remainder of 28.
The next digit of our result is 8. 
Result so far: 10084.948
The remainder is 28 after subtracting 312 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 10:
The number 39 fits into 280 7 times, leaving a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 10084.9487
Subtract 273 from 280 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.

Moving on to step 11:
70 divided by 39 is 1 with a remainder of 31.
The next digit of our result is 1. 
Result so far: 10084.94871
The remainder is 31 after subtracting 39 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 12:
The number 39 fits into 310 7 times, leaving a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 10084.948717
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.

Moving on to step 13:
When dividing 370 by 39, we get 9 with a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 10084.9487179
The remainder is 19 after subtracting 351 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 14:
39 goes into 190 4 times with a remainder of 34.
Write down 4 as next digit of the result. 
Result so far: 10084.94871794
Subtract 156 from 190 to 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.

After the division, we end up with 10084.94871794 and a remainder of 3.4e-08.