856909 divided by 66 
Our goal is to divide 856909 by 66.

Step 1:
The number 66 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 66

Let's proceed to step 2:
85 divided by 66 is 1 with a remainder of 19.
The next digit of our result is 1. 
Result so far: 1.0
If we take 66 away from 85, we end up with 19.
Grab the next digit (6) from the dividend, add it to 19, then carry on: 196 / 66

Going ahead to step 3:
If we divide 196 by 66, we get 2 and a remainder of 64.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 132 from 196 to get 64.
Include the next digit (9) from the dividend after 64, then repeat: 649 / 66

Going ahead to step 4:
649 divided by 66 is 9 with a remainder of 55.
Record the quotient 9 as the next digit in the result. 
Result so far: 129.0
If we subtract 594 from 649, we get 55.
Take the next digit (0) from the dividend and append it to 55, then repeat: 550 / 66

Going ahead to step 5:
66 goes into 550 8 times with a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 1298.0
If we take 528 away from 550, we end up with 22.
Fetch the next digit (9) from the dividend, attach it to 22 and continue: 229 / 66

Going ahead to step 6:
66 can be fit into 229 3 times, resulting in a remainder of 31.
Put 3 as the next digit of the answer. 
Result so far: 12983.0
The remainder is 31 after subtracting 198 from 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 7:
66 can be fit into 310 4 times, resulting in a remainder of 46.
Put 4 as the next digit of the answer. 
Result so far: 12983.4
Deduct 264 from 310 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 8:
The number 66 fits into 460 6 times, leaving a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 12983.46
Deduct 396 from 460 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 9:
The number 66 fits into 640 9 times, leaving a remainder of 46.
Write down 9 as next digit of the result. 
Result so far: 12983.469
If we take 594 away from 640, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 10:
The number 66 fits into 460 6 times, leaving a remainder of 64.
The next digit of our result is 6. 
Result so far: 12983.4696
Subtract 396 from 460 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 11:
The number 66 fits into 640 9 times, leaving a remainder of 46.
Use 9 as the next digit of our solution. 
Result so far: 12983.46969
The remainder is 46 after subtracting 594 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 12:
If we divide 460 by 66, we get 6 and a remainder of 64.
The next digit of our result is 6. 
Result so far: 12983.469696
Subtracting 396 from 460 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 13:
66 goes into 640 9 times with a remainder of 46.
Write down 9 as next digit of the result. 
Result so far: 12983.4696969
Subtract 594 from 640 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 14:
460 divided by 66 is 6 with a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 12983.46969696
If we take 396 away from 460, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Our division results in 12983.46969696 with a remaining 6.4e-08.