We look at the division of 601831 by 39 
The aim is to understand the frequency of 39 in 601831.

Moving on to step 1:
If we divide 6 by 39, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 39

Let's proceed to step 2:
39 can be fit into 60 1 times, resulting in a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 39 from 60 and we're left with 21.
Append the next digit (1) from the dividend to 21 and continue with: 211 / 39

Going ahead to step 3:
The number 39 fits into 211 5 times, leaving a remainder of 16.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 195 from 211 to get 16.
Bring next digit (8) of the dividend behind the 16 and repeat the process: 168 / 39

Advancing to step 4:
If we divide 168 by 39, we get 4 and a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 154.0
Subtracting 156 from 168 leaves us with 12.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 39

Going ahead to step 5:
39 goes into 123 3 times with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 1543.0
If we take 117 away from 123, we end up with 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 39

Moving on to step 6:
If we divide 61 by 39, we get 1 and a remainder of 22.
The next digit of our result is 1. 
Result so far: 15431.0
Subtract 39 from 61 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 7:
39 can be fit into 220 5 times, resulting in a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 15431.5
If we subtract 195 from 220, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 8:
When dividing 250 by 39, we get 6 with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 15431.56
Subtract 234 from 250 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 9:
If we divide 160 by 39, we get 4 and a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 15431.564
Subtract 156 from 160 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
The number 39 fits into 40 1 times, leaving a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 15431.5641
If we take 39 away from 40, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 11:
39 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 15431.5641
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 12:
39 can be fit into 100 2 times, resulting in a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 15431.564102
If we take 78 away from 100, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 13:
39 goes into 220 5 times with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 15431.5641025
The remainder is 25 after subtracting 195 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 14:
250 divided by 39 is 6 with a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 15431.56410256
Deduct 234 from 250 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 15431.56410256 with a remaining 1.6e-08.