We're dividing 39381783 by 864 
Let's see how many times 864 fits into 39381783.

Let's proceed to step 1:
If we divide 3 by 864, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 864

Going ahead to step 2:
The number 864 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the 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 / 864

On to step 3:
The number 864 fits into 393 0 times, leaving a remainder of 393.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 393, we end up with 393.
Fetch the next digit (8) from the dividend, attach it to 393 and continue: 3938 / 864

Let's proceed to step 4:
The number 864 fits into 3938 4 times, leaving a remainder of 482.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtracting 3456 from 3938 leaves us with 482.
Include the next digit (1) from the dividend after 482, then repeat: 4821 / 864

Going ahead to step 5:
4821 divided by 864 is 5 with a remainder of 501.
The next digit of our result is 5. 
Result so far: 45.0
Subtract 4320 from 4821 to get 501.
Bring next digit (7) of the dividend behind the 501 and repeat the process: 5017 / 864

On to step 6:
5017 divided by 864 is 5 with a remainder of 697.
The next digit of our result is 5. 
Result so far: 455.0
Deduct 4320 from 5017 and we're left with 697.
Fetch the next digit (8) from the dividend, attach it to 697 and continue: 6978 / 864

On to step 7:
6978 divided by 864 is 8 with a remainder of 66.
The number 8 becomes the next digit in our result. 
Result so far: 4558.0
Subtract 6912 from 6978 to get 66.
Take the next digit (3) from the dividend and append it to 66, then repeat: 663 / 864

On to step 8:
663 divided by 864 is 0 with a remainder of 663.
Write down 0 as next digit of the result. 
Result so far: 45580.0
The remainder is 663 after subtracting 0 from 663.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6630, and continue the process.

Advancing to step 9:
The number 864 fits into 6630 7 times, leaving a remainder of 582.
The next digit of our result is 7. 
Result so far: 45580.7
Subtract 6048 from 6630 to get 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Moving on to step 10:
If we divide 5820 by 864, we get 6 and a remainder of 636.
Record the quotient 6 as the next digit in the result. 
Result so far: 45580.76
If we take 5184 away from 5820, we end up with 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Advancing to step 11:
864 can be fit into 6360 7 times, resulting in a remainder of 312.
The number 7 becomes the next digit in our result. 
Result so far: 45580.767
Deduct 6048 from 6360 and we're left with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Moving on to step 12:
When dividing 3120 by 864, we get 3 with a remainder of 528.
Use 3 as the next digit of our solution. 
Result so far: 45580.7673
Subtracting 2592 from 3120 leaves us with 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Moving on to step 13:
864 can be fit into 5280 6 times, resulting in a remainder of 96.
Record the quotient 6 as the next digit in the result. 
Result so far: 45580.76736
Subtract 5184 from 5280 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 14:
If we divide 960 by 864, we get 1 and a remainder of 96.
Put 1 as the next digit of the answer. 
Result so far: 45580.767361
If we take 864 away from 960, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

On to step 15:
When dividing 960 by 864, we get 1 with a remainder of 96.
Write down 1 as next digit of the result. 
Result so far: 45580.7673611
If we take 864 away from 960, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Our division results in 45580.7673611 with a remaining 9.6e-07.