575320 divided by 39 
The aim is to understand the frequency of 39 in 575320.

Moving on to step 1:
The number 39 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 39

Moving on to step 2:
If we divide 57 by 39, we get 1 and a remainder of 18.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 39 from 57 and we're left with 18.
Fetch the next digit (5) from the dividend, attach it to 18 and continue: 185 / 39

Let's proceed to step 3:
39 goes into 185 4 times with a remainder of 29.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtracting 156 from 185 leaves us with 29.
Include the next digit (3) from the dividend after 29, then repeat: 293 / 39

Step 4:
When dividing 293 by 39, we get 7 with a remainder of 20.
Use 7 as the next digit of our solution. 
Result so far: 147.0
Subtracting 273 from 293 leaves us with 20.
Append the next digit (2) from the dividend to 20 and continue with: 202 / 39

Step 5:
When dividing 202 by 39, we get 5 with a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 1475.0
The remainder is 7 after subtracting 195 from 202.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 39

Moving on to step 6:
70 divided by 39 is 1 with a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 14751.0
The remainder is 31 after subtracting 39 from 70.
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 7:
The number 39 fits into 310 7 times, leaving a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 14751.7
If we subtract 273 from 310, we 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 8:
370 divided by 39 is 9 with a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 14751.79
If we take 351 away from 370, we end up 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.

Advancing to step 9:
39 goes into 190 4 times with a remainder of 34.
The number 4 becomes the next digit in our result. 
Result so far: 14751.794
Subtract 156 from 190 to 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.

On to step 10:
When dividing 340 by 39, we get 8 with a remainder of 28.
Write down 8 as next digit of the result. 
Result so far: 14751.7948
Subtracting 312 from 340 leaves us 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.

Advancing to step 11:
When dividing 280 by 39, we get 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 14751.79487
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.

Advancing to step 12:
70 divided by 39 is 1 with a remainder of 31.
The number 1 becomes the next digit in our result. 
Result so far: 14751.794871
The remainder is 31 after subtracting 39 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 13:
39 can be fit into 310 7 times, resulting in a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 14751.7948717
If we subtract 273 from 310, we 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.

Let's proceed to step 14:
If we divide 370 by 39, we get 9 and a remainder of 19.
The number 9 becomes the next digit in our result. 
Result so far: 14751.79487179
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.

After the division, we end up with 14751.79487179 and a remainder of 1.9e-08.