We're dividing 66856314 by 17 
We want to figure out the number of times 66856314 can be divided by 17.

On to step 1:
The number 17 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 17

Moving on to step 2:
The number 17 fits into 66 3 times, leaving a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 51 from 66 to get 15.
Grab the next digit (8) from the dividend, add it to 15, then carry on: 158 / 17

On to step 3:
The number 17 fits into 158 9 times, leaving a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 39.0
Subtract 153 from 158 to get 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 17

Step 4:
If we divide 55 by 17, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 393.0
If we subtract 51 from 55, we get 4.
Bring next digit (6) of the dividend behind the 4 and repeat the process: 46 / 17

Going ahead to step 5:
17 goes into 46 2 times with a remainder of 12.
The next digit of our result is 2. 
Result so far: 3932.0
If we subtract 34 from 46, we get 12.
Bring next digit (3) of the dividend behind the 12 and repeat the process: 123 / 17

Advancing to step 6:
If we divide 123 by 17, we get 7 and a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 39327.0
If we subtract 119 from 123, we get 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 17

Moving on to step 7:
When dividing 41 by 17, we get 2 with a remainder of 7.
The number 2 becomes the next digit in our result. 
Result so far: 393272.0
Deduct 34 from 41 and we're left with 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 17

Moving on to step 8:
When dividing 74 by 17, we get 4 with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 3932724.0
Subtract 68 from 74 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 9:
If we divide 60 by 17, we get 3 and a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 3932724.3
The remainder is 9 after subtracting 51 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 10:
17 goes into 90 5 times with a remainder of 5.
The next digit of our result is 5. 
Result so far: 3932724.35
Deduct 85 from 90 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 11:
If we divide 50 by 17, we get 2 and a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 3932724.352
Subtracting 34 from 50 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 12:
17 can be fit into 160 9 times, resulting in a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 3932724.3529
Deduct 153 from 160 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 13:
The number 17 fits into 70 4 times, leaving a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 3932724.35294
If we take 68 away from 70, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 14:
When dividing 20 by 17, we get 1 with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 3932724.352941
Subtracting 17 from 20 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 15:
When dividing 30 by 17, we get 1 with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 3932724.3529411
Subtracting 17 from 30 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final result is 3932724.3529411 with a remainder of 1.3e-07.