We look at the division of 57399242 by 39 
We want to divide 57399242 by 39.

Step 1:
39 goes into 5 0 times 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.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 39

Step 2:
57 divided by 39 is 1 with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 39 away from 57, we end up with 18.
Take the next digit (3) from the dividend and append it to 18, then repeat: 183 / 39

Moving on to step 3:
When dividing 183 by 39, we get 4 with a remainder of 27.
The next digit of our result is 4. 
Result so far: 14.0
Subtract 156 from 183 to get 27.
Bring next digit (9) of the dividend behind the 27 and repeat the process: 279 / 39

Advancing to step 4:
When dividing 279 by 39, we get 7 with a remainder of 6.
The next digit of our result is 7. 
Result so far: 147.0
Deduct 273 from 279 and we're left with 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 39

Advancing to step 5:
If we divide 69 by 39, we get 1 and a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 1471.0
The remainder is 30 after subtracting 39 from 69.
Bring next digit (2) of the dividend behind the 30 and repeat the process: 302 / 39

Moving on to step 6:
When dividing 302 by 39, we get 7 with a remainder of 29.
The number 7 becomes the next digit in our result. 
Result so far: 14717.0
Subtract 273 from 302 to get 29.
Include the next digit (4) from the dividend after 29, then repeat: 294 / 39

On to step 7:
If we divide 294 by 39, we get 7 and a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 147177.0
If we subtract 273 from 294, we get 21.
Fetch the next digit (2) from the dividend, attach it to 21 and continue: 212 / 39

Let's proceed to step 8:
212 divided by 39 is 5 with a remainder of 17.
Put 5 as the next digit of the answer. 
Result so far: 1471775.0
Subtracting 195 from 212 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 9:
If we divide 170 by 39, we get 4 and a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 1471775.4
Subtracting 156 from 170 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 10:
If we divide 140 by 39, we get 3 and a remainder of 23.
Record the quotient 3 as the next digit in the result. 
Result so far: 1471775.43
If we subtract 117 from 140, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 11:
The number 39 fits into 230 5 times, leaving a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 1471775.435
Subtract 195 from 230 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 12:
39 goes into 350 8 times with a remainder of 38.
Use 8 as the next digit of our solution. 
Result so far: 1471775.4358
If we take 312 away from 350, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 13:
380 divided by 39 is 9 with a remainder of 29.
Put 9 as the next digit of the answer. 
Result so far: 1471775.43589
The remainder is 29 after subtracting 351 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 14:
290 divided by 39 is 7 with a remainder of 17.
Write down 7 as next digit of the result. 
Result so far: 1471775.435897
Subtracting 273 from 290 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 15:
170 divided by 39 is 4 with a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 1471775.4358974
Deduct 156 from 170 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 16:
If we divide 140 by 39, we get 3 and a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 1471775.43589743
If we subtract 117 from 140, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

The final outcome is 1471775.43589743, with a leftover of 2.3e-08.