399814 ÷ 66 
Our goal is to divide 399814 by 66.

Going ahead to step 1:
66 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 66

Moving on to step 2:
When dividing 39 by 66, we get 0 with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Bring next digit (9) of the dividend behind the 39 and repeat the process: 399 / 66

Moving on to step 3:
When dividing 399 by 66, we get 6 with a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
The remainder is 3 after subtracting 396 from 399.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 66

On to step 4:
66 goes into 38 0 times with a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 60.0
Subtract 0 from 38 to get 38.
Bring next digit (1) of the dividend behind the 38 and repeat the process: 381 / 66

On to step 5:
66 goes into 381 5 times with a remainder of 51.
The next digit of our result is 5. 
Result so far: 605.0
The remainder is 51 after subtracting 330 from 381.
Fetch the next digit (4) from the dividend, attach it to 51 and continue: 514 / 66

Advancing to step 6:
When dividing 514 by 66, we get 7 with a remainder of 52.
The number 7 becomes the next digit in our result. 
Result so far: 6057.0
If we subtract 462 from 514, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 7:
When dividing 520 by 66, we get 7 with a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 6057.7
Subtract 462 from 520 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 8:
66 goes into 580 8 times with a remainder of 52.
Record the quotient 8 as the next digit in the result. 
Result so far: 6057.78
If we take 528 away from 580, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 9:
520 divided by 66 is 7 with a remainder of 58.
The next digit of our result is 7. 
Result so far: 6057.787
The remainder is 58 after subtracting 462 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 10:
66 goes into 580 8 times with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 6057.7878
If we take 528 away from 580, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 11:
If we divide 520 by 66, we get 7 and a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 6057.78787
Deduct 462 from 520 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 12:
66 can be fit into 580 8 times, resulting in a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 6057.787878
If we subtract 528 from 580, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 13:
If we divide 520 by 66, we get 7 and a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 6057.7878787
Subtracting 462 from 520 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 14:
When dividing 580 by 66, we get 8 with a remainder of 52.
Record the quotient 8 as the next digit in the result. 
Result so far: 6057.78787878
If we take 528 away from 580, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

In conclusion, the division gives 6057.78787878 with a balance of 5.2e-08.