We're dividing 70808319 by 815 
Our goal is to divide 70808319 by 815.

Going ahead to step 1:
7 divided by 815 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 815

On to step 2:
815 can be fit into 70 0 times, resulting in a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 70, we get 70.
Grab the next digit (8) from the dividend, add it to 70, then carry on: 708 / 815

Going ahead to step 3:
When dividing 708 by 815, we get 0 with a remainder of 708.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 708 to get 708.
Fetch the next digit (0) from the dividend, attach it to 708 and continue: 7080 / 815

Let's proceed to step 4:
The number 815 fits into 7080 8 times, leaving a remainder of 560.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 6520 from 7080 leaves us with 560.
Include the next digit (8) from the dividend after 560, then repeat: 5608 / 815

Advancing to step 5:
The number 815 fits into 5608 6 times, leaving a remainder of 718.
The number 6 becomes the next digit in our result. 
Result so far: 86.0
Deduct 4890 from 5608 and we're left with 718.
Fetch the next digit (3) from the dividend, attach it to 718 and continue: 7183 / 815

Moving on to step 6:
815 can be fit into 7183 8 times, resulting in a remainder of 663.
Use 8 as the next digit of our solution. 
Result so far: 868.0
If we subtract 6520 from 7183, we get 663.
Append the next digit (1) from the dividend to 663 and continue with: 6631 / 815

Step 7:
815 can be fit into 6631 8 times, resulting in a remainder of 111.
Use 8 as the next digit of our solution. 
Result so far: 8688.0
Deduct 6520 from 6631 and we're left with 111.
Include the next digit (9) from the dividend after 111, then repeat: 1119 / 815

Advancing to step 8:
If we divide 1119 by 815, we get 1 and a remainder of 304.
The number 1 becomes the next digit in our result. 
Result so far: 86881.0
Deduct 815 from 1119 and we're left with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

On to step 9:
When dividing 3040 by 815, we get 3 with a remainder of 595.
Use 3 as the next digit of our solution. 
Result so far: 86881.3
Subtract 2445 from 3040 to get 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Step 10:
815 goes into 5950 7 times with a remainder of 245.
The number 7 becomes the next digit in our result. 
Result so far: 86881.37
The remainder is 245 after subtracting 5705 from 5950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Step 11:
The number 815 fits into 2450 3 times, leaving a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 86881.373
Subtracting 2445 from 2450 leaves us 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.

Let's proceed to step 12:
50 divided by 815 is 0 with a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 86881.373
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 13:
The number 815 fits into 500 0 times, leaving a remainder of 500.
Use 0 as the next digit of our solution. 
Result so far: 86881.373
If we take 0 away from 500, we end up with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The final outcome is 86881.373, with a leftover of 0.0005.