We look at the division of 653623 by 39 
The aim is to understand the frequency of 39 in 653623.

Step 1:
39 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 39

On to step 2:
If we divide 65 by 39, we get 1 and a remainder of 26.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 39 from 65 leaves us with 26.
Take the next digit (3) from the dividend and append it to 26, then repeat: 263 / 39

Step 3:
39 can be fit into 263 6 times, resulting in a remainder of 29.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we subtract 234 from 263, we get 29.
Fetch the next digit (6) from the dividend, attach it to 29 and continue: 296 / 39

Let's proceed to step 4:
When dividing 296 by 39, we get 7 with a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 167.0
Subtracting 273 from 296 leaves us with 23.
Take the next digit (2) from the dividend and append it to 23, then repeat: 232 / 39

Step 5:
232 divided by 39 is 5 with a remainder of 37.
Record the quotient 5 as the next digit in the result. 
Result so far: 1675.0
The remainder is 37 after subtracting 195 from 232.
Grab the next digit (3) from the dividend, add it to 37, then carry on: 373 / 39

Moving on to step 6:
39 can be fit into 373 9 times, resulting in a remainder of 22.
Use 9 as the next digit of our solution. 
Result so far: 16759.0
If we subtract 351 from 373, we 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.

Let's proceed to step 7:
The number 39 fits into 220 5 times, leaving a remainder of 25.
The next digit of our result is 5. 
Result so far: 16759.5
If we take 195 away from 220, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 8:
39 can be fit into 250 6 times, resulting in a remainder of 16.
The next digit of our result is 6. 
Result so far: 16759.56
Subtracting 234 from 250 leaves us 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.

Moving on to step 9:
39 goes into 160 4 times with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 16759.564
If we take 156 away from 160, we end up with 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:
When dividing 40 by 39, we get 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 16759.5641
The remainder is 1 after subtracting 39 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 11:
39 can be fit into 10 0 times, resulting in a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 16759.5641
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.

Advancing to step 12:
39 goes into 100 2 times with a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 16759.564102
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.

Going ahead to step 13:
220 divided by 39 is 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 16759.5641025
Subtract 195 from 220 to 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 14:
If we divide 250 by 39, we get 6 and a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 16759.56410256
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.

Our division results in 16759.56410256 with a remaining 1.6e-08.