We look at the division of 38839757 by 725 
The aim is to understand the frequency of 725 in 38839757.

Step 1:
If we divide 3 by 725, we get 0 and a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 725

Let's proceed to step 2:
38 divided by 725 is 0 with a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 38, we get 38.
Take the next digit (8) from the dividend and append it to 38, then repeat: 388 / 725

On to step 3:
When dividing 388 by 725, we get 0 with a remainder of 388.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 388 and we're left with 388.
Bring next digit (3) of the dividend behind the 388 and repeat the process: 3883 / 725

On to step 4:
If we divide 3883 by 725, we get 5 and a remainder of 258.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 258 after subtracting 3625 from 3883.
Fetch the next digit (9) from the dividend, attach it to 258 and continue: 2589 / 725

Advancing to step 5:
The number 725 fits into 2589 3 times, leaving a remainder of 414.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
Subtracting 2175 from 2589 leaves us with 414.
Bring next digit (7) of the dividend behind the 414 and repeat the process: 4147 / 725

Advancing to step 6:
725 goes into 4147 5 times with a remainder of 522.
Record the quotient 5 as the next digit in the result. 
Result so far: 535.0
The remainder is 522 after subtracting 3625 from 4147.
Fetch the next digit (5) from the dividend, attach it to 522 and continue: 5225 / 725

Advancing to step 7:
The number 725 fits into 5225 7 times, leaving a remainder of 150.
The next digit of our result is 7. 
Result so far: 5357.0
The remainder is 150 after subtracting 5075 from 5225.
Append the next digit (7) from the dividend to 150 and continue with: 1507 / 725

Let's proceed to step 8:
When dividing 1507 by 725, we get 2 with a remainder of 57.
Put 2 as the next digit of the answer. 
Result so far: 53572.0
Subtracting 1450 from 1507 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 9:
If we divide 570 by 725, we get 0 and a remainder of 570.
Use 0 as the next digit of our solution. 
Result so far: 53572.0
Deduct 0 from 570 and we're left with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Let's proceed to step 10:
The number 725 fits into 5700 7 times, leaving a remainder of 625.
The number 7 becomes the next digit in our result. 
Result so far: 53572.07
Subtract 5075 from 5700 to get 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Moving on to step 11:
When dividing 6250 by 725, we get 8 with a remainder of 450.
Put 8 as the next digit of the answer. 
Result so far: 53572.078
Subtract 5800 from 6250 to get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 12:
The number 725 fits into 4500 6 times, leaving a remainder of 150.
Write down 6 as next digit of the result. 
Result so far: 53572.0786
The remainder is 150 after subtracting 4350 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 13:
725 goes into 1500 2 times with a remainder of 50.
Put 2 as the next digit of the answer. 
Result so far: 53572.07862
Subtracting 1450 from 1500 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 14:
When dividing 500 by 725, we get 0 with a remainder of 500.
The number 0 becomes the next digit in our result. 
Result so far: 53572.07862
The remainder is 500 after subtracting 0 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Let's proceed to step 15:
If we divide 5000 by 725, we get 6 and a remainder of 650.
The number 6 becomes the next digit in our result. 
Result so far: 53572.0786206
Subtract 4350 from 5000 to get 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

On to step 16:
725 goes into 6500 8 times with a remainder of 700.
Put 8 as the next digit of the answer. 
Result so far: 53572.07862068
The remainder is 700 after subtracting 5800 from 6500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Our division results in 53572.07862068 with a remaining 7e-07.