Let's divide 819910 by 66
Our goal is to divide 819910 by 66.

On to step 1:
The number 66 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 66

Step 2:
81 divided by 66 is 1 with a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 15 after subtracting 66 from 81.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 66

On to step 3:
66 can be fit into 159 2 times, resulting in a remainder of 27.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we subtract 132 from 159, we get 27.
Append the next digit (9) from the dividend to 27 and continue with: 279 / 66

Moving on to step 4:
279 divided by 66 is 4 with a remainder of 15.
Record the quotient 4 as the next digit in the result. 
Result so far: 124.0
Subtract 264 from 279 to get 15.
Append the next digit (1) from the dividend to 15 and continue with: 151 / 66

Advancing to step 5:
66 can be fit into 151 2 times, resulting in a remainder of 19.
Put 2 as the next digit of the answer. 
Result so far: 1242.0
Subtracting 132 from 151 leaves us with 19.
Grab the next digit (0) from the dividend, add it to 19, then carry on: 190 / 66

Going ahead to step 6:
66 goes into 190 2 times with a remainder of 58.
The next digit of our result is 2. 
Result so far: 12422.0
Subtracting 132 from 190 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.

Advancing to step 7:
When dividing 580 by 66, we get 8 with a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 12422.8
The remainder is 52 after subtracting 528 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 8:
When dividing 520 by 66, we get 7 with a remainder of 58.
Put 7 as the next digit of the answer. 
Result so far: 12422.87
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 9:
If we divide 580 by 66, we get 8 and a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 12422.878
Subtracting 528 from 580 leaves us 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.

Let's proceed to step 10:
520 divided by 66 is 7 with a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 12422.8787
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 11:
If we divide 580 by 66, we get 8 and a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 12422.87878
The remainder is 52 after subtracting 528 from 580.
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 12:
When dividing 520 by 66, we get 7 with a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 12422.878787
If we subtract 462 from 520, we 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.

Going ahead to step 13:
When dividing 580 by 66, we get 8 with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 12422.8787878
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.

Moving on to step 14:
The number 66 fits into 520 7 times, leaving a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 12422.87878787
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.

The final outcome is 12422.87878787, with a leftover of 5.8e-08.