We look at the division of 857542 by 66 
We want to divide 857542 by 66.

Let's proceed to step 1:
66 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
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

On to step 2:
The number 66 fits into 85 1 times, leaving a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 66 from 85, we get 19.
Grab the next digit (7) from the dividend, add it to 19, then carry on: 197 / 66

On to step 3:
If we divide 197 by 66, we get 2 and a remainder of 65.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 65 after subtracting 132 from 197.
Fetch the next digit (5) from the dividend, attach it to 65 and continue: 655 / 66

Let's proceed to step 4:
When dividing 655 by 66, we get 9 with a remainder of 61.
Write down 9 as next digit of the result. 
Result so far: 129.0
Subtracting 594 from 655 leaves us with 61.
Take the next digit (4) from the dividend and append it to 61, then repeat: 614 / 66

Step 5:
66 can be fit into 614 9 times, resulting in a remainder of 20.
The number 9 becomes the next digit in our result. 
Result so far: 1299.0
If we subtract 594 from 614, we get 20.
Append the next digit (2) from the dividend to 20 and continue with: 202 / 66

Let's proceed to step 6:
66 can be fit into 202 3 times, resulting in a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 12993.0
Deduct 198 from 202 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 7:
The number 66 fits into 40 0 times, leaving a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 12993.0
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 8:
If we divide 400 by 66, we get 6 and a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 12993.06
If we take 396 away from 400, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
If we divide 40 by 66, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 12993.06
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 10:
If we divide 400 by 66, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 12993.0606
Deduct 396 from 400 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 11:
66 can be fit into 40 0 times, resulting in a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 12993.0606
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 12:
When dividing 400 by 66, we get 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 12993.060606
Subtracting 396 from 400 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 13:
If we divide 40 by 66, we get 0 and a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 12993.060606
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 14:
66 can be fit into 400 6 times, resulting in a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 12993.06060606
Subtracting 396 from 400 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 12993.06060606, with a leftover of 4e-09.