66804554 ÷ 312 
We want to divide 66804554 by 312.

Moving on to step 1:
312 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 312

Moving on to step 2:
When dividing 66 by 312, we get 0 with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Include the next digit (8) from the dividend after 66, then repeat: 668 / 312

Let's proceed to step 3:
The number 312 fits into 668 2 times, leaving a remainder of 44.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 624 from 668 leaves us with 44.
Bring next digit (0) of the dividend behind the 44 and repeat the process: 440 / 312

Step 4:
The number 312 fits into 440 1 times, leaving a remainder of 128.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Deduct 312 from 440 and we're left with 128.
Append the next digit (4) from the dividend to 128 and continue with: 1284 / 312

On to step 5:
If we divide 1284 by 312, we get 4 and a remainder of 36.
Write down 4 as next digit of the result. 
Result so far: 214.0
Deduct 1248 from 1284 and we're left with 36.
Bring next digit (5) of the dividend behind the 36 and repeat the process: 365 / 312

On to step 6:
The number 312 fits into 365 1 times, leaving a remainder of 53.
Write down 1 as next digit of the result. 
Result so far: 2141.0
If we take 312 away from 365, we end up with 53.
Fetch the next digit (5) from the dividend, attach it to 53 and continue: 535 / 312

On to step 7:
312 goes into 535 1 times with a remainder of 223.
Put 1 as the next digit of the answer. 
Result so far: 21411.0
If we subtract 312 from 535, we get 223.
Include the next digit (4) from the dividend after 223, then repeat: 2234 / 312

On to step 8:
312 goes into 2234 7 times with a remainder of 50.
Put 7 as the next digit of the answer. 
Result so far: 214117.0
If we take 2184 away from 2234, we end up 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.

Moving on to step 9:
312 can be fit into 500 1 times, resulting in a remainder of 188.
Use 1 as the next digit of our solution. 
Result so far: 214117.1
Deduct 312 from 500 and we're left with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Moving on to step 10:
When dividing 1880 by 312, we get 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 214117.16
Subtract 1872 from 1880 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 11:
The number 312 fits into 80 0 times, leaving a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 214117.16
Deduct 0 from 80 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 12:
800 divided by 312 is 2 with a remainder of 176.
Record the quotient 2 as the next digit in the result. 
Result so far: 214117.1602
If we subtract 624 from 800, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

On to step 13:
The number 312 fits into 1760 5 times, leaving a remainder of 200.
Put 5 as the next digit of the answer. 
Result so far: 214117.16025
The remainder is 200 after subtracting 1560 from 1760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 14:
When dividing 2000 by 312, we get 6 with a remainder of 128.
Put 6 as the next digit of the answer. 
Result so far: 214117.160256
Subtracting 1872 from 2000 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 15:
If we divide 1280 by 312, we get 4 and a remainder of 32.
The next digit of our result is 4. 
Result so far: 214117.1602564
If we subtract 1248 from 1280, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 16:
320 divided by 312 is 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 214117.16025641
If we subtract 312 from 320, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 214117.16025641 with a remainder of 8e-09.