57157725 ÷ 39 
We want to figure out the number of times 57157725 can be divided by 39.

Let's proceed to step 1:
5 divided by 39 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 39

Advancing to step 2:
The number 39 fits into 57 1 times, leaving a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 39 from 57 leaves us with 18.
Append the next digit (1) from the dividend to 18 and continue with: 181 / 39

On to step 3:
If we divide 181 by 39, we get 4 and a remainder of 25.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Subtract 156 from 181 to get 25.
Append the next digit (5) from the dividend to 25 and continue with: 255 / 39

Let's proceed to step 4:
39 can be fit into 255 6 times, resulting in a remainder of 21.
Put 6 as the next digit of the answer. 
Result so far: 146.0
If we subtract 234 from 255, we get 21.
Append the next digit (7) from the dividend to 21 and continue with: 217 / 39

On to step 5:
If we divide 217 by 39, we get 5 and a remainder of 22.
Put 5 as the next digit of the answer. 
Result so far: 1465.0
Deduct 195 from 217 and we're left with 22.
Bring next digit (7) of the dividend behind the 22 and repeat the process: 227 / 39

Advancing to step 6:
39 can be fit into 227 5 times, resulting in a remainder of 32.
Put 5 as the next digit of the answer. 
Result so far: 14655.0
If we take 195 away from 227, we end up with 32.
Fetch the next digit (2) from the dividend, attach it to 32 and continue: 322 / 39

Going ahead to step 7:
When dividing 322 by 39, we get 8 with a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 146558.0
The remainder is 10 after subtracting 312 from 322.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 39

Let's proceed to step 8:
39 goes into 105 2 times with a remainder of 27.
Write down 2 as next digit of the result. 
Result so far: 1465582.0
Deduct 78 from 105 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 9:
270 divided by 39 is 6 with a remainder of 36.
Write down 6 as next digit of the result. 
Result so far: 1465582.6
If we subtract 234 from 270, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 10:
If we divide 360 by 39, we get 9 and a remainder of 9.
The next digit of our result is 9. 
Result so far: 1465582.69
The remainder is 9 after subtracting 351 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 11:
If we divide 90 by 39, we get 2 and a remainder of 12.
The next digit of our result is 2. 
Result so far: 1465582.692
Deduct 78 from 90 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 12:
If we divide 120 by 39, we get 3 and a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 1465582.6923
The remainder is 3 after subtracting 117 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 13:
30 divided by 39 is 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 1465582.6923
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 14:
300 divided by 39 is 7 with a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 1465582.692307
Deduct 273 from 300 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 15:
270 divided by 39 is 6 with a remainder of 36.
The next digit of our result is 6. 
Result so far: 1465582.6923076
The remainder is 36 after subtracting 234 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 16:
If we divide 360 by 39, we get 9 and a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 1465582.69230769
The remainder is 9 after subtracting 351 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Our division results in 1465582.69230769 with a remaining 9e-09.