We look at the division of 509521 by 68 
We want to divide 509521 by 68.

Let's proceed to step 1:
68 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (0) from the dividend after 5, then repeat: 50 / 68

Advancing to step 2:
50 divided by 68 is 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 50 after subtracting 0 from 50.
Fetch the next digit (9) from the dividend, attach it to 50 and continue: 509 / 68

On to step 3:
The number 68 fits into 509 7 times, leaving a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 476 from 509 and we're left with 33.
Take the next digit (5) from the dividend and append it to 33, then repeat: 335 / 68

On to step 4:
335 divided by 68 is 4 with a remainder of 63.
Record the quotient 4 as the next digit in the result. 
Result so far: 74.0
If we subtract 272 from 335, we get 63.
Append the next digit (2) from the dividend to 63 and continue with: 632 / 68

Moving on to step 5:
If we divide 632 by 68, we get 9 and a remainder of 20.
Write down 9 as next digit of the result. 
Result so far: 749.0
Subtract 612 from 632 to get 20.
Grab the next digit (1) from the dividend, add it to 20, then carry on: 201 / 68

Moving on to step 6:
If we divide 201 by 68, we get 2 and a remainder of 65.
The next digit of our result is 2. 
Result so far: 7492.0
If we take 136 away from 201, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 7:
68 can be fit into 650 9 times, resulting in a remainder of 38.
Use 9 as the next digit of our solution. 
Result so far: 7492.9
The remainder is 38 after subtracting 612 from 650.
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 8:
68 can be fit into 380 5 times, resulting in a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 7492.95
Deduct 340 from 380 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.

On to step 9:
68 can be fit into 400 5 times, resulting in a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 7492.955
If we subtract 340 from 400, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final outcome is 7492.955, with a leftover of 0.006.