We look at the division of 54851168 by 639 
We want to figure out the number of times 54851168 can be divided by 639.

Moving on to step 1:
639 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 639

Step 2:
If we divide 54 by 639, we get 0 and a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Bring next digit (8) of the dividend behind the 54 and repeat the process: 548 / 639

Moving on to step 3:
548 divided by 639 is 0 with a remainder of 548.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 548 and we're left with 548.
Fetch the next digit (5) from the dividend, attach it to 548 and continue: 5485 / 639

Advancing to step 4:
The number 639 fits into 5485 8 times, leaving a remainder of 373.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 5112 from 5485, we get 373.
Append the next digit (1) from the dividend to 373 and continue with: 3731 / 639

Let's proceed to step 5:
639 goes into 3731 5 times with a remainder of 536.
Use 5 as the next digit of our solution. 
Result so far: 85.0
If we subtract 3195 from 3731, we get 536.
Include the next digit (1) from the dividend after 536, then repeat: 5361 / 639

Going ahead to step 6:
639 goes into 5361 8 times with a remainder of 249.
Put 8 as the next digit of the answer. 
Result so far: 858.0
Subtract 5112 from 5361 to get 249.
Fetch the next digit (6) from the dividend, attach it to 249 and continue: 2496 / 639

Let's proceed to step 7:
The number 639 fits into 2496 3 times, leaving a remainder of 579.
Record the quotient 3 as the next digit in the result. 
Result so far: 8583.0
Deduct 1917 from 2496 and we're left with 579.
Include the next digit (8) from the dividend after 579, then repeat: 5798 / 639

Step 8:
639 goes into 5798 9 times with a remainder of 47.
Write down 9 as next digit of the result. 
Result so far: 85839.0
Subtracting 5751 from 5798 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 9:
The number 639 fits into 470 0 times, leaving a remainder of 470.
Use 0 as the next digit of our solution. 
Result so far: 85839.0
Deduct 0 from 470 and we're left with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

On to step 10:
When dividing 4700 by 639, we get 7 with a remainder of 227.
Write down 7 as next digit of the result. 
Result so far: 85839.07
Subtracting 4473 from 4700 leaves us with 227.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2270, and continue the process.

Moving on to step 11:
When dividing 2270 by 639, we get 3 with a remainder of 353.
Write down 3 as next digit of the result. 
Result so far: 85839.073
Subtract 1917 from 2270 to get 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Advancing to step 12:
3530 divided by 639 is 5 with a remainder of 335.
Put 5 as the next digit of the answer. 
Result so far: 85839.0735
Subtract 3195 from 3530 to get 335.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Going ahead to step 13:
639 goes into 3350 5 times with a remainder of 155.
The next digit of our result is 5. 
Result so far: 85839.07355
Subtract 3195 from 3350 to get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Our division results in 85839.07355 with a remaining 0.000155.