Let's divide 5252428 by 639
Our goal is to divide 5252428 by 639.

Step 1:
If we divide 5 by 639, we get 0 and 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.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 639

Step 2:
The number 639 fits into 52 0 times, leaving a remainder of 52.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 52 after subtracting 0 from 52.
Take the next digit (5) from the dividend and append it to 52, then repeat: 525 / 639

Going ahead to step 3:
The number 639 fits into 525 0 times, leaving a remainder of 525.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 525, we get 525.
Take the next digit (2) from the dividend and append it to 525, then repeat: 5252 / 639

Advancing to step 4:
If we divide 5252 by 639, we get 8 and a remainder of 140.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 5112 away from 5252, we end up with 140.
Append the next digit (4) from the dividend to 140 and continue with: 1404 / 639

Advancing to step 5:
639 can be fit into 1404 2 times, resulting in a remainder of 126.
Write down 2 as next digit of the result. 
Result so far: 82.0
If we subtract 1278 from 1404, we get 126.
Bring next digit (2) of the dividend behind the 126 and repeat the process: 1262 / 639

Moving on to step 6:
639 can be fit into 1262 1 times, resulting in a remainder of 623.
Record the quotient 1 as the next digit in the result. 
Result so far: 821.0
Subtract 639 from 1262 to get 623.
Append the next digit (8) from the dividend to 623 and continue with: 6238 / 639

Step 7:
639 goes into 6238 9 times with a remainder of 487.
The number 9 becomes the next digit in our result. 
Result so far: 8219.0
Subtracting 5751 from 6238 leaves us with 487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4870, and continue the process.

On to step 8:
639 can be fit into 4870 7 times, resulting in a remainder of 397.
Record the quotient 7 as the next digit in the result. 
Result so far: 8219.7
Subtract 4473 from 4870 to get 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

On to step 9:
If we divide 3970 by 639, we get 6 and a remainder of 136.
Record the quotient 6 as the next digit in the result. 
Result so far: 8219.76
Subtracting 3834 from 3970 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

On to step 10:
If we divide 1360 by 639, we get 2 and a remainder of 82.
Put 2 as the next digit of the answer. 
Result so far: 8219.762
If we take 1278 away from 1360, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 11:
639 can be fit into 820 1 times, resulting in a remainder of 181.
Record the quotient 1 as the next digit in the result. 
Result so far: 8219.7621
Subtract 639 from 820 to get 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Step 12:
When dividing 1810 by 639, we get 2 with a remainder of 532.
Put 2 as the next digit of the answer. 
Result so far: 8219.76212
Subtracting 1278 from 1810 leaves us with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Let's proceed to step 13:
If we divide 5320 by 639, we get 8 and a remainder of 208.
Write down 8 as next digit of the result. 
Result so far: 8219.762128
Deduct 5112 from 5320 and we're left with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Moving on to step 14:
If we divide 2080 by 639, we get 3 and a remainder of 163.
Put 3 as the next digit of the answer. 
Result so far: 8219.7621283
Deduct 1917 from 2080 and we're left with 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Let's proceed to step 15:
639 goes into 1630 2 times with a remainder of 352.
Write down 2 as next digit of the result. 
Result so far: 8219.76212832
If we subtract 1278 from 1630, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

The final outcome is 8219.76212832, with a leftover of 3.52e-07.