66106311 ÷ 310 
Our goal is to divide 66106311 by 310.

Going ahead to step 1:
The number 310 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 310

Going ahead to step 2:
The number 310 fits into 66 0 times, leaving a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Include the next digit (1) from the dividend after 66, then repeat: 661 / 310

Step 3:
The number 310 fits into 661 2 times, leaving a remainder of 41.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 620 from 661 leaves us with 41.
Append the next digit (0) from the dividend to 41 and continue with: 410 / 310

Moving on to step 4:
The number 310 fits into 410 1 times, leaving a remainder of 100.
Put 1 as the next digit of the answer. 
Result so far: 21.0
If we take 310 away from 410, we end up with 100.
Include the next digit (6) from the dividend after 100, then repeat: 1006 / 310

Going ahead to step 5:
When dividing 1006 by 310, we get 3 with a remainder of 76.
Write down 3 as next digit of the result. 
Result so far: 213.0
If we subtract 930 from 1006, we get 76.
Grab the next digit (3) from the dividend, add it to 76, then carry on: 763 / 310

Going ahead to step 6:
763 divided by 310 is 2 with a remainder of 143.
The number 2 becomes the next digit in our result. 
Result so far: 2132.0
Deduct 620 from 763 and we're left with 143.
Bring next digit (1) of the dividend behind the 143 and repeat the process: 1431 / 310

On to step 7:
310 goes into 1431 4 times with a remainder of 191.
Put 4 as the next digit of the answer. 
Result so far: 21324.0
Subtract 1240 from 1431 to get 191.
Fetch the next digit (1) from the dividend, attach it to 191 and continue: 1911 / 310

Advancing to step 8:
When dividing 1911 by 310, we get 6 with a remainder of 51.
The next digit of our result is 6. 
Result so far: 213246.0
The remainder is 51 after subtracting 1860 from 1911.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 9:
310 goes into 510 1 times with a remainder of 200.
Use 1 as the next digit of our solution. 
Result so far: 213246.1
If we take 310 away from 510, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 10:
If we divide 2000 by 310, we get 6 and a remainder of 140.
Use 6 as the next digit of our solution. 
Result so far: 213246.16
If we take 1860 away from 2000, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 11:
1400 divided by 310 is 4 with a remainder of 160.
Write down 4 as next digit of the result. 
Result so far: 213246.164
Deduct 1240 from 1400 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 12:
1600 divided by 310 is 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 213246.1645
Subtracting 1550 from 1600 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 13:
If we divide 500 by 310, we get 1 and a remainder of 190.
The next digit of our result is 1. 
Result so far: 213246.16451
Subtract 310 from 500 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Going ahead to step 14:
310 can be fit into 1900 6 times, resulting in a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 213246.164516
If we subtract 1860 from 1900, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 15:
The number 310 fits into 400 1 times, leaving a remainder of 90.
Write down 1 as next digit of the result. 
Result so far: 213246.1645161
If we take 310 away from 400, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Going ahead to step 16:
310 goes into 900 2 times with a remainder of 280.
Put 2 as the next digit of the answer. 
Result so far: 213246.16451612
Subtracting 620 from 900 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

The final outcome is 213246.16451612, with a leftover of 2.8e-07.