51720867 divided by 549 
Let's see how many times 549 fits into 51720867.

Moving on to step 1:
549 goes into 5 0 times 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.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 549

Step 2:
If we divide 51 by 549, we get 0 and a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Grab the next digit (7) from the dividend, add it to 51, then carry on: 517 / 549

Step 3:
517 divided by 549 is 0 with a remainder of 517.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 517, we get 517.
Take the next digit (2) from the dividend and append it to 517, then repeat: 5172 / 549

On to step 4:
If we divide 5172 by 549, we get 9 and a remainder of 231.
The next digit of our result is 9. 
Result so far: 9.0
Subtracting 4941 from 5172 leaves us with 231.
Append the next digit (0) from the dividend to 231 and continue with: 2310 / 549

Let's proceed to step 5:
When dividing 2310 by 549, we get 4 with a remainder of 114.
The next digit of our result is 4. 
Result so far: 94.0
If we subtract 2196 from 2310, we get 114.
Take the next digit (8) from the dividend and append it to 114, then repeat: 1148 / 549

Advancing to step 6:
If we divide 1148 by 549, we get 2 and a remainder of 50.
Use 2 as the next digit of our solution. 
Result so far: 942.0
Deduct 1098 from 1148 and we're left with 50.
Take the next digit (6) from the dividend and append it to 50, then repeat: 506 / 549

Advancing to step 7:
549 goes into 506 0 times with a remainder of 506.
Put 0 as the next digit of the answer. 
Result so far: 9420.0
Subtracting 0 from 506 leaves us with 506.
Bring next digit (7) of the dividend behind the 506 and repeat the process: 5067 / 549

Going ahead to step 8:
549 can be fit into 5067 9 times, resulting in a remainder of 126.
Put 9 as the next digit of the answer. 
Result so far: 94209.0
If we subtract 4941 from 5067, we get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Advancing to step 9:
1260 divided by 549 is 2 with a remainder of 162.
Record the quotient 2 as the next digit in the result. 
Result so far: 94209.2
Deduct 1098 from 1260 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Let's proceed to step 10:
When dividing 1620 by 549, we get 2 with a remainder of 522.
Write down 2 as next digit of the result. 
Result so far: 94209.22
If we take 1098 away from 1620, we end up with 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

The final outcome is 94209.22, with a leftover of 0.522.