54510555 ÷ 217 
Our goal is to divide 54510555 by 217.

Step 1:
The number 217 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 217

Let's proceed to step 2:
217 goes into 54 0 times with a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Append the next digit (5) from the dividend to 54 and continue with: 545 / 217

Let's proceed to step 3:
The number 217 fits into 545 2 times, leaving a remainder of 111.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 434 away from 545, we end up with 111.
Include the next digit (1) from the dividend after 111, then repeat: 1111 / 217

Step 4:
The number 217 fits into 1111 5 times, leaving a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 25.0
Subtract 1085 from 1111 to get 26.
Fetch the next digit (0) from the dividend, attach it to 26 and continue: 260 / 217

Advancing to step 5:
260 divided by 217 is 1 with a remainder of 43.
The number 1 becomes the next digit in our result. 
Result so far: 251.0
The remainder is 43 after subtracting 217 from 260.
Append the next digit (5) from the dividend to 43 and continue with: 435 / 217

Moving on to step 6:
217 can be fit into 435 2 times, resulting in a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 2512.0
If we subtract 434 from 435, we get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 217

Step 7:
217 goes into 15 0 times with a remainder of 15.
The next digit of our result is 0. 
Result so far: 25120.0
Subtract 0 from 15 to get 15.
Grab the next digit (5) from the dividend, add it to 15, then carry on: 155 / 217

Step 8:
217 goes into 155 0 times with a remainder of 155.
Record the quotient 0 as the next digit in the result. 
Result so far: 251200.0
Deduct 0 from 155 and we're left with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Moving on to step 9:
If we divide 1550 by 217, we get 7 and a remainder of 31.
The number 7 becomes the next digit in our result. 
Result so far: 251200.7
Subtracting 1519 from 1550 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 10:
217 goes into 310 1 times with a remainder of 93.
The number 1 becomes the next digit in our result. 
Result so far: 251200.71
Subtract 217 from 310 to get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Moving on to step 11:
The number 217 fits into 930 4 times, leaving a remainder of 62.
Use 4 as the next digit of our solution. 
Result so far: 251200.714
If we take 868 away from 930, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 12:
If we divide 620 by 217, we get 2 and a remainder of 186.
The next digit of our result is 2. 
Result so far: 251200.7142
If we subtract 434 from 620, we get 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Step 13:
When dividing 1860 by 217, we get 8 with a remainder of 124.
Use 8 as the next digit of our solution. 
Result so far: 251200.71428
Subtract 1736 from 1860 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Advancing to step 14:
217 can be fit into 1240 5 times, resulting in a remainder of 155.
The next digit of our result is 5. 
Result so far: 251200.714285
Subtracting 1085 from 1240 leaves us with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Step 15:
217 goes into 1550 7 times with a remainder of 31.
Write down 7 as next digit of the result. 
Result so far: 251200.7142857
If we take 1519 away from 1550, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 16:
217 goes into 310 1 times with a remainder of 93.
Put 1 as the next digit of the answer. 
Result so far: 251200.71428571
Deduct 217 from 310 and we're left with 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Our division results in 251200.71428571 with a remaining 9.3e-08.