Let's divide 809210 by 66
We're looking to find how many times 66 goes into 809210.

Going ahead to step 1:
If we divide 8 by 66, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 66

Advancing to step 2:
66 can be fit into 80 1 times, resulting in a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 66 away from 80, we end up with 14.
Bring next digit (9) of the dividend behind the 14 and repeat the process: 149 / 66

Advancing to step 3:
149 divided by 66 is 2 with a remainder of 17.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 132 from 149 to get 17.
Bring next digit (2) of the dividend behind the 17 and repeat the process: 172 / 66

On to step 4:
66 can be fit into 172 2 times, resulting in a remainder of 40.
Write down 2 as next digit of the result. 
Result so far: 122.0
Deduct 132 from 172 and we're left with 40.
Include the next digit (1) from the dividend after 40, then repeat: 401 / 66

Advancing to step 5:
66 can be fit into 401 6 times, resulting in a remainder of 5.
The next digit of our result is 6. 
Result so far: 1226.0
If we take 396 away from 401, we end up with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 66

Step 6:
66 goes into 50 0 times with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 12260.0
Subtract 0 from 50 to get 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 7:
66 can be fit into 500 7 times, resulting in a remainder of 38.
The next digit of our result is 7. 
Result so far: 12260.7
Subtracting 462 from 500 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 8:
66 can be fit into 380 5 times, resulting in a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 12260.75
The remainder is 50 after subtracting 330 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
500 divided by 66 is 7 with a remainder of 38.
The next digit of our result is 7. 
Result so far: 12260.757
If we subtract 462 from 500, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 10:
66 goes into 380 5 times with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 12260.7575
Deduct 330 from 380 and we're left 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.

Advancing to step 11:
66 goes into 500 7 times with a remainder of 38.
The number 7 becomes the next digit in our result. 
Result so far: 12260.75757
Subtracting 462 from 500 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 12:
The number 66 fits into 380 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 12260.757575
Subtract 330 from 380 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 13:
When dividing 500 by 66, we get 7 with a remainder of 38.
The next digit of our result is 7. 
Result so far: 12260.7575757
The remainder is 38 after subtracting 462 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 14:
66 goes into 380 5 times with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 12260.75757575
If we take 330 away from 380, 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.

Our division results in 12260.75757575 with a remaining 5e-08.