We're dividing 638879 by 39 
Let's see how many times 39 fits into 638879.

Step 1:
When dividing 6 by 39, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 39

Going ahead to step 2:
If we divide 63 by 39, we get 1 and a remainder of 24.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 39 from 63 leaves us with 24.
Bring next digit (8) of the dividend behind the 24 and repeat the process: 248 / 39

Moving on to step 3:
The number 39 fits into 248 6 times, leaving a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 16.0
The remainder is 14 after subtracting 234 from 248.
Include the next digit (8) from the dividend after 14, then repeat: 148 / 39

Advancing to step 4:
The number 39 fits into 148 3 times, leaving a remainder of 31.
The number 3 becomes the next digit in our result. 
Result so far: 163.0
If we subtract 117 from 148, we get 31.
Bring next digit (7) of the dividend behind the 31 and repeat the process: 317 / 39

Moving on to step 5:
39 can be fit into 317 8 times, resulting in a remainder of 5.
Write down 8 as next digit of the result. 
Result so far: 1638.0
Deduct 312 from 317 and we're left with 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 39

Moving on to step 6:
When dividing 59 by 39, we get 1 with a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 16381.0
If we subtract 39 from 59, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 7:
39 can be fit into 200 5 times, resulting in a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 16381.5
Subtracting 195 from 200 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
The number 39 fits into 50 1 times, leaving a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 16381.51
The remainder is 11 after subtracting 39 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 9:
39 goes into 110 2 times with a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 16381.512
The remainder is 32 after subtracting 78 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
39 can be fit into 320 8 times, resulting in a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 16381.5128
If we take 312 away from 320, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
If we divide 80 by 39, we get 2 and a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 16381.51282
Subtracting 78 from 80 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 12:
39 goes into 20 0 times with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 16381.51282
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 13:
The number 39 fits into 200 5 times, leaving a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 16381.5128205
Subtracting 195 from 200 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 14:
The number 39 fits into 50 1 times, leaving a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 16381.51282051
Deduct 39 from 50 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

In conclusion, the division gives 16381.51282051 with a balance of 1.1e-08.