66814166 divided by 312 
Let's see how many times 312 fits into 66814166.

Step 1:
When dividing 6 by 312, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 312

Step 2:
The number 312 fits into 66 0 times, leaving a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Fetch the next digit (8) from the dividend, attach it to 66 and continue: 668 / 312

Going ahead to step 3:
668 divided by 312 is 2 with a remainder of 44.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 624 from 668, we get 44.
Bring next digit (1) of the dividend behind the 44 and repeat the process: 441 / 312

Moving on to step 4:
312 goes into 441 1 times with a remainder of 129.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Subtract 312 from 441 to get 129.
Take the next digit (4) from the dividend and append it to 129, then repeat: 1294 / 312

Moving on to step 5:
The number 312 fits into 1294 4 times, leaving a remainder of 46.
The next digit of our result is 4. 
Result so far: 214.0
If we take 1248 away from 1294, we end up with 46.
Bring next digit (1) of the dividend behind the 46 and repeat the process: 461 / 312

On to step 6:
461 divided by 312 is 1 with a remainder of 149.
Record the quotient 1 as the next digit in the result. 
Result so far: 2141.0
If we subtract 312 from 461, we get 149.
Bring next digit (6) of the dividend behind the 149 and repeat the process: 1496 / 312

Let's proceed to step 7:
1496 divided by 312 is 4 with a remainder of 248.
Use 4 as the next digit of our solution. 
Result so far: 21414.0
Deduct 1248 from 1496 and we're left with 248.
Grab the next digit (6) from the dividend, add it to 248, then carry on: 2486 / 312

Step 8:
If we divide 2486 by 312, we get 7 and a remainder of 302.
Put 7 as the next digit of the answer. 
Result so far: 214147.0
Deduct 2184 from 2486 and we're left with 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Let's proceed to step 9:
When dividing 3020 by 312, we get 9 with a remainder of 212.
The next digit of our result is 9. 
Result so far: 214147.9
Subtracting 2808 from 3020 leaves us with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Going ahead to step 10:
2120 divided by 312 is 6 with a remainder of 248.
Write down 6 as next digit of the result. 
Result so far: 214147.96
Subtract 1872 from 2120 to get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Advancing to step 11:
The number 312 fits into 2480 7 times, leaving a remainder of 296.
The next digit of our result is 7. 
Result so far: 214147.967
The remainder is 296 after subtracting 2184 from 2480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Going ahead to step 12:
When dividing 2960 by 312, we get 9 with a remainder of 152.
Write down 9 as next digit of the result. 
Result so far: 214147.9679
If we take 2808 away from 2960, we end up with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Moving on to step 13:
312 goes into 1520 4 times with a remainder of 272.
The next digit of our result is 4. 
Result so far: 214147.96794
Subtract 1248 from 1520 to get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Let's proceed to step 14:
2720 divided by 312 is 8 with a remainder of 224.
The next digit of our result is 8. 
Result so far: 214147.967948
Subtract 2496 from 2720 to get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Let's proceed to step 15:
312 goes into 2240 7 times with a remainder of 56.
Record the quotient 7 as the next digit in the result. 
Result so far: 214147.9679487
Subtracting 2184 from 2240 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 16:
312 goes into 560 1 times with a remainder of 248.
Use 1 as the next digit of our solution. 
Result so far: 214147.96794871
If we take 312 away from 560, we end up with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

The final outcome is 214147.96794871, with a leftover of 2.48e-07.