We're dividing 54312303 by 623 
Let's see how many times 623 fits into 54312303.

Going ahead to step 1:
When dividing 5 by 623, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 623

Advancing to step 2:
If we divide 54 by 623, we get 0 and a remainder of 54.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 54 and we're left with 54.
Take the next digit (3) from the dividend and append it to 54, then repeat: 543 / 623

Advancing to step 3:
623 goes into 543 0 times with a remainder of 543.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 543 and we're left with 543.
Include the next digit (1) from the dividend after 543, then repeat: 5431 / 623

Step 4:
623 can be fit into 5431 8 times, resulting in a remainder of 447.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 4984 from 5431 leaves us with 447.
Bring next digit (2) of the dividend behind the 447 and repeat the process: 4472 / 623

Let's proceed to step 5:
623 can be fit into 4472 7 times, resulting in a remainder of 111.
Write down 7 as next digit of the result. 
Result so far: 87.0
If we take 4361 away from 4472, we end up with 111.
Include the next digit (3) from the dividend after 111, then repeat: 1113 / 623

Step 6:
623 can be fit into 1113 1 times, resulting in a remainder of 490.
Put 1 as the next digit of the answer. 
Result so far: 871.0
Subtract 623 from 1113 to get 490.
Take the next digit (0) from the dividend and append it to 490, then repeat: 4900 / 623

Moving on to step 7:
4900 divided by 623 is 7 with a remainder of 539.
Record the quotient 7 as the next digit in the result. 
Result so far: 8717.0
Subtract 4361 from 4900 to get 539.
Grab the next digit (3) from the dividend, add it to 539, then carry on: 5393 / 623

On to step 8:
When dividing 5393 by 623, we get 8 with a remainder of 409.
The next digit of our result is 8. 
Result so far: 87178.0
Deduct 4984 from 5393 and we're left with 409.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4090, and continue the process.

Advancing to step 9:
4090 divided by 623 is 6 with a remainder of 352.
The next digit of our result is 6. 
Result so far: 87178.6
The remainder is 352 after subtracting 3738 from 4090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Step 10:
If we divide 3520 by 623, we get 5 and a remainder of 405.
The next digit of our result is 5. 
Result so far: 87178.65
Deduct 3115 from 3520 and we're left with 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Advancing to step 11:
623 goes into 4050 6 times with a remainder of 312.
Put 6 as the next digit of the answer. 
Result so far: 87178.656
Subtracting 3738 from 4050 leaves us 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.

Let's proceed to step 12:
623 can be fit into 3120 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 87178.6565
If we subtract 3115 from 3120, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 13:
623 can be fit into 50 0 times, resulting in a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 87178.6565
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 14:
If we divide 500 by 623, we get 0 and a remainder of 500.
Use 0 as the next digit of our solution. 
Result so far: 87178.6565
Subtract 0 from 500 to get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The final result is 87178.6565 with a remainder of 5e-05.