We look at the division of 39399261 by 623 
Let's see how many times 623 fits into 39399261.

Step 1:
3 divided by 623 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 623

On to step 2:
623 goes into 39 0 times with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Append the next digit (3) from the dividend to 39 and continue with: 393 / 623

Advancing to step 3:
When dividing 393 by 623, we get 0 with a remainder of 393.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 393 and we're left with 393.
Take the next digit (9) from the dividend and append it to 393, then repeat: 3939 / 623

Advancing to step 4:
3939 divided by 623 is 6 with a remainder of 201.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
The remainder is 201 after subtracting 3738 from 3939.
Append the next digit (9) from the dividend to 201 and continue with: 2019 / 623

Step 5:
When dividing 2019 by 623, we get 3 with a remainder of 150.
Write down 3 as next digit of the result. 
Result so far: 63.0
The remainder is 150 after subtracting 1869 from 2019.
Append the next digit (2) from the dividend to 150 and continue with: 1502 / 623

Step 6:
When dividing 1502 by 623, we get 2 with a remainder of 256.
Record the quotient 2 as the next digit in the result. 
Result so far: 632.0
If we subtract 1246 from 1502, we get 256.
Take the next digit (6) from the dividend and append it to 256, then repeat: 2566 / 623

On to step 7:
623 can be fit into 2566 4 times, resulting in a remainder of 74.
The number 4 becomes the next digit in our result. 
Result so far: 6324.0
Subtracting 2492 from 2566 leaves us with 74.
Include the next digit (1) from the dividend after 74, then repeat: 741 / 623

Let's proceed to step 8:
The number 623 fits into 741 1 times, leaving a remainder of 118.
The next digit of our result is 1. 
Result so far: 63241.0
If we subtract 623 from 741, we get 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Advancing to step 9:
623 goes into 1180 1 times with a remainder of 557.
Write down 1 as next digit of the result. 
Result so far: 63241.1
If we take 623 away from 1180, we end up with 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

Let's proceed to step 10:
The number 623 fits into 5570 8 times, leaving a remainder of 586.
Put 8 as the next digit of the answer. 
Result so far: 63241.18
Subtracting 4984 from 5570 leaves us with 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

Let's proceed to step 11:
When dividing 5860 by 623, we get 9 with a remainder of 253.
Use 9 as the next digit of our solution. 
Result so far: 63241.189
The remainder is 253 after subtracting 5607 from 5860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Let's proceed to step 12:
The number 623 fits into 2530 4 times, leaving a remainder of 38.
Use 4 as the next digit of our solution. 
Result so far: 63241.1894
The remainder is 38 after subtracting 2492 from 2530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 13:
The number 623 fits into 380 0 times, leaving a remainder of 380.
Write down 0 as next digit of the result. 
Result so far: 63241.1894
Deduct 0 from 380 and we're left with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 14:
623 goes into 3800 6 times with a remainder of 62.
The number 6 becomes the next digit in our result. 
Result so far: 63241.189406
If we subtract 3738 from 3800, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 15:
When dividing 620 by 623, we get 0 with a remainder of 620.
The number 0 becomes the next digit in our result. 
Result so far: 63241.189406
If we take 0 away from 620, we end up with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

On to step 16:
623 can be fit into 6200 9 times, resulting in a remainder of 593.
Put 9 as the next digit of the answer. 
Result so far: 63241.18940609
Subtract 5607 from 6200 to get 593.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5930, and continue the process.

After the division, we end up with 63241.18940609 and a remainder of 5.93e-07.