Let's divide 31089903 by 800
We want to divide 31089903 by 800.

Going ahead to step 1:
3 divided by 800 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 800

Moving on to step 2:
When dividing 31 by 800, we get 0 with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Take the next digit (0) from the dividend and append it to 31, then repeat: 310 / 800

Advancing to step 3:
When dividing 310 by 800, we get 0 with a remainder of 310.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 310 after subtracting 0 from 310.
Bring next digit (8) of the dividend behind the 310 and repeat the process: 3108 / 800

Moving on to step 4:
800 can be fit into 3108 3 times, resulting in a remainder of 708.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 2400 from 3108 leaves us with 708.
Take the next digit (9) from the dividend and append it to 708, then repeat: 7089 / 800

Moving on to step 5:
800 can be fit into 7089 8 times, resulting in a remainder of 689.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
If we subtract 6400 from 7089, we get 689.
Take the next digit (9) from the dividend and append it to 689, then repeat: 6899 / 800

Moving on to step 6:
The number 800 fits into 6899 8 times, leaving a remainder of 499.
The next digit of our result is 8. 
Result so far: 388.0
Subtract 6400 from 6899 to get 499.
Bring next digit (0) of the dividend behind the 499 and repeat the process: 4990 / 800

Moving on to step 7:
When dividing 4990 by 800, we get 6 with a remainder of 190.
The next digit of our result is 6. 
Result so far: 3886.0
Subtract 4800 from 4990 to get 190.
Take the next digit (3) from the dividend and append it to 190, then repeat: 1903 / 800

Step 8:
800 can be fit into 1903 2 times, resulting in a remainder of 303.
Write down 2 as next digit of the result. 
Result so far: 38862.0
The remainder is 303 after subtracting 1600 from 1903.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Step 9:
If we divide 3030 by 800, we get 3 and a remainder of 630.
Write down 3 as next digit of the result. 
Result so far: 38862.3
If we subtract 2400 from 3030, we get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Step 10:
If we divide 6300 by 800, we get 7 and a remainder of 700.
The next digit of our result is 7. 
Result so far: 38862.37
If we subtract 5600 from 6300, we get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Let's proceed to step 11:
7000 divided by 800 is 8 with a remainder of 600.
Put 8 as the next digit of the answer. 
Result so far: 38862.378
Deduct 6400 from 7000 and we're left with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Moving on to step 12:
When dividing 6000 by 800, we get 7 with a remainder of 400.
Write down 7 as next digit of the result. 
Result so far: 38862.3787
Deduct 5600 from 6000 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 13:
When dividing 4000 by 800, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 38862.37875
Subtracting 4000 from 4000 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 14:
800 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 38862.37875
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 15:
0 divided by 800 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 38862.37875
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 38862.37875 with a remaining 0.0.