We're dividing 80370863 by 931 
Let's see how many times 931 fits into 80370863.

Going ahead to step 1:
If we divide 8 by 931, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 931

Moving on to step 2:
80 divided by 931 is 0 with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Fetch the next digit (3) from the dividend, attach it to 80 and continue: 803 / 931

On to step 3:
When dividing 803 by 931, we get 0 with a remainder of 803.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 803 to get 803.
Fetch the next digit (7) from the dividend, attach it to 803 and continue: 8037 / 931

On to step 4:
When dividing 8037 by 931, we get 8 with a remainder of 589.
The next digit of our result is 8. 
Result so far: 8.0
Deduct 7448 from 8037 and we're left with 589.
Grab the next digit (0) from the dividend, add it to 589, then carry on: 5890 / 931

Moving on to step 5:
If we divide 5890 by 931, we get 6 and a remainder of 304.
The next digit of our result is 6. 
Result so far: 86.0
Subtract 5586 from 5890 to get 304.
Fetch the next digit (8) from the dividend, attach it to 304 and continue: 3048 / 931

Going ahead to step 6:
When dividing 3048 by 931, we get 3 with a remainder of 255.
The next digit of our result is 3. 
Result so far: 863.0
If we subtract 2793 from 3048, we get 255.
Grab the next digit (6) from the dividend, add it to 255, then carry on: 2556 / 931

On to step 7:
The number 931 fits into 2556 2 times, leaving a remainder of 694.
Write down 2 as next digit of the result. 
Result so far: 8632.0
Deduct 1862 from 2556 and we're left with 694.
Bring next digit (3) of the dividend behind the 694 and repeat the process: 6943 / 931

Going ahead to step 8:
The number 931 fits into 6943 7 times, leaving a remainder of 426.
Write down 7 as next digit of the result. 
Result so far: 86327.0
If we take 6517 away from 6943, we end up with 426.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4260, and continue the process.

Advancing to step 9:
The number 931 fits into 4260 4 times, leaving a remainder of 536.
Write down 4 as next digit of the result. 
Result so far: 86327.4
Subtract 3724 from 4260 to get 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Let's proceed to step 10:
When dividing 5360 by 931, we get 5 with a remainder of 705.
Write down 5 as next digit of the result. 
Result so far: 86327.45
Subtract 4655 from 5360 to get 705.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7050, and continue the process.

Let's proceed to step 11:
When dividing 7050 by 931, we get 7 with a remainder of 533.
Write down 7 as next digit of the result. 
Result so far: 86327.457
If we subtract 6517 from 7050, we get 533.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5330, and continue the process.

Going ahead to step 12:
When dividing 5330 by 931, we get 5 with a remainder of 675.
Write down 5 as next digit of the result. 
Result so far: 86327.4575
Subtracting 4655 from 5330 leaves us with 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

On to step 13:
931 can be fit into 6750 7 times, resulting in a remainder of 233.
Write down 7 as next digit of the result. 
Result so far: 86327.45757
If we subtract 6517 from 6750, we get 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Going ahead to step 14:
931 can be fit into 2330 2 times, resulting in a remainder of 468.
The number 2 becomes the next digit in our result. 
Result so far: 86327.457572
Subtract 1862 from 2330 to get 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Let's proceed to step 15:
4680 divided by 931 is 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 86327.4575725
If we subtract 4655 from 4680, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 16:
931 goes into 250 0 times with a remainder of 250.
Record the quotient 0 as the next digit in the result. 
Result so far: 86327.4575725
If we take 0 away from 250, we end up with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

The final result is 86327.4575725 with a remainder of 2.5e-07.