Let's divide 664436 by 39
The aim is to understand the frequency of 39 in 664436.

Step 1:
If we divide 6 by 39, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 39

Let's proceed to step 2:
39 can be fit into 66 1 times, resulting in a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 39 from 66 leaves us with 27.
Append the next digit (4) from the dividend to 27 and continue with: 274 / 39

Moving on to step 3:
If we divide 274 by 39, we get 7 and a remainder of 1.
The next digit of our result is 7. 
Result so far: 17.0
If we subtract 273 from 274, we get 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 39

Step 4:
39 goes into 14 0 times with a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 170.0
Subtracting 0 from 14 leaves us with 14.
Bring next digit (3) of the dividend behind the 14 and repeat the process: 143 / 39

Step 5:
39 goes into 143 3 times with a remainder of 26.
Put 3 as the next digit of the answer. 
Result so far: 1703.0
The remainder is 26 after subtracting 117 from 143.
Fetch the next digit (6) from the dividend, attach it to 26 and continue: 266 / 39

Let's proceed to step 6:
The number 39 fits into 266 6 times, leaving a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 17036.0
Subtracting 234 from 266 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 7:
When dividing 320 by 39, we get 8 with a remainder of 8.
The next digit of our result is 8. 
Result so far: 17036.8
Subtract 312 from 320 to 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.

Moving on to step 8:
39 goes into 80 2 times with a remainder of 2.
The next digit of our result is 2. 
Result so far: 17036.82
The remainder is 2 after subtracting 78 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
20 divided by 39 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 17036.82
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 10:
200 divided by 39 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 17036.8205
If we subtract 195 from 200, we get 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 11:
The number 39 fits into 50 1 times, leaving a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 17036.82051
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 12:
The number 39 fits into 110 2 times, leaving a remainder of 32.
The next digit of our result is 2. 
Result so far: 17036.820512
Deduct 78 from 110 and we're left with 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 13:
When dividing 320 by 39, we get 8 with a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 17036.8205128
Subtracting 312 from 320 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 14:
If we divide 80 by 39, we get 2 and a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 17036.82051282
The remainder is 2 after subtracting 78 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final outcome is 17036.82051282, with a leftover of 2e-09.