We look at the division of 67215318 by 809 
We want to divide 67215318 by 809.

On to step 1:
If we divide 6 by 809, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 809

On to step 2:
809 can be fit into 67 0 times, resulting in a remainder of 67.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 67, we end up with 67.
Bring next digit (2) of the dividend behind the 67 and repeat the process: 672 / 809

Step 3:
When dividing 672 by 809, we get 0 with a remainder of 672.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 672, we get 672.
Bring next digit (1) of the dividend behind the 672 and repeat the process: 6721 / 809

Advancing to step 4:
6721 divided by 809 is 8 with a remainder of 249.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 249 after subtracting 6472 from 6721.
Include the next digit (5) from the dividend after 249, then repeat: 2495 / 809

Going ahead to step 5:
The number 809 fits into 2495 3 times, leaving a remainder of 68.
Put 3 as the next digit of the answer. 
Result so far: 83.0
Subtract 2427 from 2495 to get 68.
Include the next digit (3) from the dividend after 68, then repeat: 683 / 809

Going ahead to step 6:
683 divided by 809 is 0 with a remainder of 683.
Record the quotient 0 as the next digit in the result. 
Result so far: 830.0
Subtract 0 from 683 to get 683.
Include the next digit (1) from the dividend after 683, then repeat: 6831 / 809

On to step 7:
If we divide 6831 by 809, we get 8 and a remainder of 359.
Use 8 as the next digit of our solution. 
Result so far: 8308.0
Subtracting 6472 from 6831 leaves us with 359.
Grab the next digit (8) from the dividend, add it to 359, then carry on: 3598 / 809

Step 8:
809 goes into 3598 4 times with a remainder of 362.
The number 4 becomes the next digit in our result. 
Result so far: 83084.0
Subtracting 3236 from 3598 leaves us with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Moving on to step 9:
809 can be fit into 3620 4 times, resulting in a remainder of 384.
Write down 4 as next digit of the result. 
Result so far: 83084.4
Subtract 3236 from 3620 to get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

On to step 10:
If we divide 3840 by 809, we get 4 and a remainder of 604.
The number 4 becomes the next digit in our result. 
Result so far: 83084.44
Subtracting 3236 from 3840 leaves us with 604.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6040, and continue the process.

In conclusion, the division gives 83084.44 with a balance of 0.604.