5771039 ÷ 639 
Let's see how many times 639 fits into 5771039.

Step 1:
If we divide 5 by 639, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 639

Moving on to step 2:
The number 639 fits into 57 0 times, leaving a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 57 and we're left with 57.
Append the next digit (7) from the dividend to 57 and continue with: 577 / 639

Step 3:
639 can be fit into 577 0 times, resulting in a remainder of 577.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 577 and we're left with 577.
Include the next digit (1) from the dividend after 577, then repeat: 5771 / 639

Advancing to step 4:
If we divide 5771 by 639, we get 9 and a remainder of 20.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 5751 from 5771 and we're left with 20.
Take the next digit (0) from the dividend and append it to 20, then repeat: 200 / 639

Going ahead to step 5:
639 goes into 200 0 times with a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 90.0
Deduct 0 from 200 and we're left with 200.
Include the next digit (3) from the dividend after 200, then repeat: 2003 / 639

On to step 6:
2003 divided by 639 is 3 with a remainder of 86.
Put 3 as the next digit of the answer. 
Result so far: 903.0
Deduct 1917 from 2003 and we're left with 86.
Include the next digit (9) from the dividend after 86, then repeat: 869 / 639

Moving on to step 7:
639 can be fit into 869 1 times, resulting in a remainder of 230.
Use 1 as the next digit of our solution. 
Result so far: 9031.0
Deduct 639 from 869 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Moving on to step 8:
If we divide 2300 by 639, we get 3 and a remainder of 383.
Put 3 as the next digit of the answer. 
Result so far: 9031.3
If we subtract 1917 from 2300, we get 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Let's proceed to step 9:
The number 639 fits into 3830 5 times, leaving a remainder of 635.
Record the quotient 5 as the next digit in the result. 
Result so far: 9031.35
Subtract 3195 from 3830 to get 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Going ahead to step 10:
If we divide 6350 by 639, we get 9 and a remainder of 599.
Put 9 as the next digit of the answer. 
Result so far: 9031.359
If we subtract 5751 from 6350, we get 599.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5990, and continue the process.

Going ahead to step 11:
639 goes into 5990 9 times with a remainder of 239.
Put 9 as the next digit of the answer. 
Result so far: 9031.3599
If we subtract 5751 from 5990, we get 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

The final outcome is 9031.3599, with a leftover of 0.00239.