We look at the division of 54024008 by 521 
We want to divide 54024008 by 521.

Advancing to step 1:
If we divide 5 by 521, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 521

Moving on to step 2:
When dividing 54 by 521, we get 0 with a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 54 and we're left with 54.
Append the next digit (0) from the dividend to 54 and continue with: 540 / 521

Step 3:
The number 521 fits into 540 1 times, leaving a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 521 from 540, we get 19.
Include the next digit (2) from the dividend after 19, then repeat: 192 / 521

Let's proceed to step 4:
When dividing 192 by 521, we get 0 with a remainder of 192.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 192 to get 192.
Take the next digit (4) from the dividend and append it to 192, then repeat: 1924 / 521

On to step 5:
521 can be fit into 1924 3 times, resulting in a remainder of 361.
Put 3 as the next digit of the answer. 
Result so far: 103.0
Deduct 1563 from 1924 and we're left with 361.
Bring next digit (0) of the dividend behind the 361 and repeat the process: 3610 / 521

Step 6:
If we divide 3610 by 521, we get 6 and a remainder of 484.
Write down 6 as next digit of the result. 
Result so far: 1036.0
If we subtract 3126 from 3610, we get 484.
Bring next digit (0) of the dividend behind the 484 and repeat the process: 4840 / 521

Advancing to step 7:
521 goes into 4840 9 times with a remainder of 151.
Write down 9 as next digit of the result. 
Result so far: 10369.0
If we take 4689 away from 4840, we end up with 151.
Grab the next digit (8) from the dividend, add it to 151, then carry on: 1518 / 521

Let's proceed to step 8:
The number 521 fits into 1518 2 times, leaving a remainder of 476.
Write down 2 as next digit of the result. 
Result so far: 103692.0
The remainder is 476 after subtracting 1042 from 1518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Advancing to step 9:
521 can be fit into 4760 9 times, resulting in a remainder of 71.
The number 9 becomes the next digit in our result. 
Result so far: 103692.9
If we take 4689 away from 4760, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 10:
521 goes into 710 1 times with a remainder of 189.
Use 1 as the next digit of our solution. 
Result so far: 103692.91
Subtracting 521 from 710 leaves us with 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

Moving on to step 11:
521 can be fit into 1890 3 times, resulting in a remainder of 327.
The next digit of our result is 3. 
Result so far: 103692.913
Subtracting 1563 from 1890 leaves us with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Advancing to step 12:
521 can be fit into 3270 6 times, resulting in a remainder of 144.
Record the quotient 6 as the next digit in the result. 
Result so far: 103692.9136
The remainder is 144 after subtracting 3126 from 3270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

On to step 13:
If we divide 1440 by 521, we get 2 and a remainder of 398.
The next digit of our result is 2. 
Result so far: 103692.91362
The remainder is 398 after subtracting 1042 from 1440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

On to step 14:
521 can be fit into 3980 7 times, resulting in a remainder of 333.
The number 7 becomes the next digit in our result. 
Result so far: 103692.913627
Subtract 3647 from 3980 to get 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Advancing to step 15:
If we divide 3330 by 521, we get 6 and a remainder of 204.
Write down 6 as next digit of the result. 
Result so far: 103692.9136276
Subtracting 3126 from 3330 leaves us with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

On to step 16:
The number 521 fits into 2040 3 times, leaving a remainder of 477.
The next digit of our result is 3. 
Result so far: 103692.91362763
The remainder is 477 after subtracting 1563 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

The final result is 103692.91362763 with a remainder of 4.77e-07.