Let's divide 628561 by 39
The aim is to understand the frequency of 39 in 628561.

Step 1:
The number 39 fits into 6 0 times, leaving 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.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 39

Advancing to step 2:
The number 39 fits into 62 1 times, leaving a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 39 from 62 and we're left with 23.
Take the next digit (8) from the dividend and append it to 23, then repeat: 238 / 39

Going ahead to step 3:
If we divide 238 by 39, we get 6 and a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Subtracting 234 from 238 leaves us with 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 39

Let's proceed to step 4:
If we divide 45 by 39, we get 1 and a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 161.0
Subtract 39 from 45 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 39

On to step 5:
If we divide 66 by 39, we get 1 and a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 1611.0
If we subtract 39 from 66, we get 27.
Include the next digit (1) from the dividend after 27, then repeat: 271 / 39

On to step 6:
39 can be fit into 271 6 times, resulting in a remainder of 37.
The number 6 becomes the next digit in our result. 
Result so far: 16116.0
Subtract 234 from 271 to 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.

Step 7:
370 divided by 39 is 9 with a remainder of 19.
The next digit of our result is 9. 
Result so far: 16116.9
Subtracting 351 from 370 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 8:
The number 39 fits into 190 4 times, leaving a remainder of 34.
Write down 4 as next digit of the result. 
Result so far: 16116.94
If we subtract 156 from 190, we 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.

Advancing to step 9:
340 divided by 39 is 8 with a remainder of 28.
Write down 8 as next digit of the result. 
Result so far: 16116.948
If we take 312 away from 340, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 10:
If we divide 280 by 39, we get 7 and a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 16116.9487
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:
If we divide 70 by 39, we get 1 and a remainder of 31.
Record the quotient 1 as the next digit in the result. 
Result so far: 16116.94871
Deduct 39 from 70 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 12:
If we divide 310 by 39, we get 7 and a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 16116.948717
If we take 273 away from 310, we end up with 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:
39 can be fit into 370 9 times, resulting in a remainder of 19.
Write down 9 as next digit of the result. 
Result so far: 16116.9487179
Subtract 351 from 370 to get 19.
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 14:
If we divide 190 by 39, we get 4 and a remainder of 34.
The next digit of our result is 4. 
Result so far: 16116.94871794
If we subtract 156 from 190, we 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.

Our division results in 16116.94871794 with a remaining 3.4e-08.