Let's divide 660938 by 39
The aim is to understand the frequency of 39 in 660938.

Let's proceed to step 1:
39 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 39

Going ahead to step 2:
The number 39 fits into 66 1 times, leaving a remainder of 27.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 39 away from 66, we end up with 27.
Append the next digit (0) from the dividend to 27 and continue with: 270 / 39

Step 3:
39 goes into 270 6 times with a remainder of 36.
The next digit of our result is 6. 
Result so far: 16.0
If we subtract 234 from 270, we get 36.
Fetch the next digit (9) from the dividend, attach it to 36 and continue: 369 / 39

Let's proceed to step 4:
39 can be fit into 369 9 times, resulting in a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 169.0
Subtract 351 from 369 to get 18.
Take the next digit (3) from the dividend and append it to 18, then repeat: 183 / 39

Let's proceed to step 5:
When dividing 183 by 39, we get 4 with a remainder of 27.
Record the quotient 4 as the next digit in the result. 
Result so far: 1694.0
Subtracting 156 from 183 leaves us with 27.
Grab the next digit (8) from the dividend, add it to 27, then carry on: 278 / 39

Let's proceed to step 6:
39 goes into 278 7 times with a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 16947.0
If we take 273 away from 278, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 7:
When dividing 50 by 39, we get 1 with a remainder of 11.
The next digit of our result is 1. 
Result so far: 16947.1
Subtracting 39 from 50 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 8:
39 can be fit into 110 2 times, resulting in a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 16947.12
Subtract 78 from 110 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 9:
39 goes into 320 8 times with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 16947.128
If we subtract 312 from 320, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 10:
If we divide 80 by 39, we get 2 and a remainder of 2.
The next digit of our result is 2. 
Result so far: 16947.1282
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 11:
20 divided by 39 is 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 16947.1282
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 12:
200 divided by 39 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 16947.128205
Deduct 195 from 200 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 13:
39 goes into 50 1 times with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 16947.1282051
Deduct 39 from 50 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 14:
The number 39 fits into 110 2 times, leaving a remainder of 32.
The next digit of our result is 2. 
Result so far: 16947.12820512
If we subtract 78 from 110, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 16947.12820512, with a leftover of 3.2e-08.