55721191 ÷ 310 
Our goal is to divide 55721191 by 310.

Step 1:
If we divide 5 by 310, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 310

Moving on to step 2:
310 goes into 55 0 times with a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 55, we end up with 55.
Grab the next digit (7) from the dividend, add it to 55, then carry on: 557 / 310

Let's proceed to step 3:
When dividing 557 by 310, we get 1 with a remainder of 247.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 310 from 557 leaves us with 247.
Fetch the next digit (2) from the dividend, attach it to 247 and continue: 2472 / 310

On to step 4:
310 goes into 2472 7 times with a remainder of 302.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we subtract 2170 from 2472, we get 302.
Take the next digit (1) from the dividend and append it to 302, then repeat: 3021 / 310

Step 5:
The number 310 fits into 3021 9 times, leaving a remainder of 231.
Use 9 as the next digit of our solution. 
Result so far: 179.0
Subtract 2790 from 3021 to get 231.
Fetch the next digit (1) from the dividend, attach it to 231 and continue: 2311 / 310

On to step 6:
If we divide 2311 by 310, we get 7 and a remainder of 141.
Write down 7 as next digit of the result. 
Result so far: 1797.0
Deduct 2170 from 2311 and we're left with 141.
Include the next digit (9) from the dividend after 141, then repeat: 1419 / 310

Moving on to step 7:
The number 310 fits into 1419 4 times, leaving a remainder of 179.
Write down 4 as next digit of the result. 
Result so far: 17974.0
The remainder is 179 after subtracting 1240 from 1419.
Take the next digit (1) from the dividend and append it to 179, then repeat: 1791 / 310

Step 8:
1791 divided by 310 is 5 with a remainder of 241.
Use 5 as the next digit of our solution. 
Result so far: 179745.0
If we take 1550 away from 1791, we end up with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Going ahead to step 9:
If we divide 2410 by 310, we get 7 and a remainder of 240.
The number 7 becomes the next digit in our result. 
Result so far: 179745.7
If we subtract 2170 from 2410, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 10:
2400 divided by 310 is 7 with a remainder of 230.
Write down 7 as next digit of the result. 
Result so far: 179745.77
If we subtract 2170 from 2400, we get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

The quotient of the division is 179745.77, and the remainder is 0.23.