85023070 ÷ 17 
We want to figure out the number of times 85023070 can be divided by 17.

On to step 1:
17 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 17

Advancing to step 2:
17 can be fit into 85 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 85 from 85 leaves us with 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 17

Moving on to step 3:
17 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 50.0
The remainder is 0 after subtracting 0 from 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 17

Going ahead to step 4:
17 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 500.0
If we take 0 away from 2, we end up with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 17

Advancing to step 5:
If we divide 23 by 17, we get 1 and a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 5001.0
Deduct 17 from 23 and we're left with 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 17

Advancing to step 6:
60 divided by 17 is 3 with a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 50013.0
If we subtract 51 from 60, we get 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 17

Step 7:
17 goes into 97 5 times with a remainder of 12.
Use 5 as the next digit of our solution. 
Result so far: 500135.0
Subtracting 85 from 97 leaves us with 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 17

Advancing to step 8:
If we divide 120 by 17, we get 7 and a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 5001357.0
Deduct 119 from 120 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 9:
If we divide 10 by 17, we get 0 and a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 5001357.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 10:
100 divided by 17 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 5001357.05
If we take 85 away from 100, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 11:
150 divided by 17 is 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 5001357.058
Subtract 136 from 150 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 12:
17 can be fit into 140 8 times, resulting in a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 5001357.0588
If we take 136 away from 140, 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.

Our division results in 5001357.0588 with a remaining 4e-05.