We look at the division of 606321 by 39 
The aim is to understand the frequency of 39 in 606321.

Moving on to step 1:
6 divided by 39 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 39

Step 2:
The number 39 fits into 60 1 times, leaving a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 39 from 60 and we're left with 21.
Fetch the next digit (6) from the dividend, attach it to 21 and continue: 216 / 39

Going ahead to step 3:
The number 39 fits into 216 5 times, leaving a remainder of 21.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtract 195 from 216 to get 21.
Append the next digit (3) from the dividend to 21 and continue with: 213 / 39

Advancing to step 4:
The number 39 fits into 213 5 times, leaving a remainder of 18.
Record the quotient 5 as the next digit in the result. 
Result so far: 155.0
If we take 195 away from 213, we end up with 18.
Fetch the next digit (2) from the dividend, attach it to 18 and continue: 182 / 39

Step 5:
39 goes into 182 4 times with a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 1554.0
Deduct 156 from 182 and we're left with 26.
Bring next digit (1) of the dividend behind the 26 and repeat the process: 261 / 39

Let's proceed to step 6:
When dividing 261 by 39, we get 6 with a remainder of 27.
Write down 6 as next digit of the result. 
Result so far: 15546.0
Subtract 234 from 261 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 7:
The number 39 fits into 270 6 times, leaving a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 15546.6
The remainder is 36 after subtracting 234 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 8:
When dividing 360 by 39, we get 9 with a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 15546.69
The remainder is 9 after subtracting 351 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 9:
When dividing 90 by 39, we get 2 with a remainder of 12.
The next digit of our result is 2. 
Result so far: 15546.692
If we take 78 away from 90, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 10:
The number 39 fits into 120 3 times, leaving a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 15546.6923
Subtracting 117 from 120 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 11:
If we divide 30 by 39, we get 0 and a remainder of 30.
The next digit of our result is 0. 
Result so far: 15546.6923
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
If we divide 300 by 39, we get 7 and a remainder of 27.
Write down 7 as next digit of the result. 
Result so far: 15546.692307
If we subtract 273 from 300, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 13:
39 goes into 270 6 times with a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 15546.6923076
Subtract 234 from 270 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 14:
When dividing 360 by 39, we get 9 with a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 15546.69230769
Subtract 351 from 360 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

In conclusion, the division gives 15546.69230769 with a balance of 9e-09.