We look at the division of 623503 by 39 
Our goal is to divide 623503 by 39.

Step 1:
39 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 39

Let's proceed to step 2:
The number 39 fits into 62 1 times, leaving a remainder of 23.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 39 from 62 to get 23.
Include the next digit (3) from the dividend after 23, then repeat: 233 / 39

On to step 3:
When dividing 233 by 39, we get 5 with a remainder of 38.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtracting 195 from 233 leaves us with 38.
Fetch the next digit (5) from the dividend, attach it to 38 and continue: 385 / 39

Advancing to step 4:
385 divided by 39 is 9 with a remainder of 34.
The number 9 becomes the next digit in our result. 
Result so far: 159.0
Deduct 351 from 385 and we're left with 34.
Grab the next digit (0) from the dividend, add it to 34, then carry on: 340 / 39

Step 5:
340 divided by 39 is 8 with a remainder of 28.
The next digit of our result is 8. 
Result so far: 1598.0
The remainder is 28 after subtracting 312 from 340.
Include the next digit (3) from the dividend after 28, then repeat: 283 / 39

Advancing to step 6:
If we divide 283 by 39, we get 7 and a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 15987.0
Subtracting 273 from 283 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
39 can be fit into 100 2 times, resulting in a remainder of 22.
Put 2 as the next digit of the answer. 
Result so far: 15987.2
Subtracting 78 from 100 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 8:
39 goes into 220 5 times with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 15987.25
Subtracting 195 from 220 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 9:
The number 39 fits into 250 6 times, leaving a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 15987.256
If we take 234 away from 250, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 10:
160 divided by 39 is 4 with a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 15987.2564
If we take 156 away from 160, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 11:
40 divided by 39 is 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 15987.25641
The remainder is 1 after subtracting 39 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 12:
When dividing 10 by 39, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 15987.25641
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 13:
39 can be fit into 100 2 times, resulting in a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 15987.2564102
The remainder is 22 after subtracting 78 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 14:
The number 39 fits into 220 5 times, leaving a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 15987.25641025
If we subtract 195 from 220, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 15987.25641025 with a remainder of 2.5e-08.