We look at the division of 78031535 by 251 
We're looking to find how many times 251 goes into 78031535.

Step 1:
7 divided by 251 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 251

Moving on to step 2:
When dividing 78 by 251, we get 0 with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 78, we end up with 78.
Fetch the next digit (0) from the dividend, attach it to 78 and continue: 780 / 251

Going ahead to step 3:
251 can be fit into 780 3 times, resulting in a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 753 from 780 leaves us with 27.
Include the next digit (3) from the dividend after 27, then repeat: 273 / 251

Step 4:
273 divided by 251 is 1 with a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 31.0
If we subtract 251 from 273, we get 22.
Bring next digit (1) of the dividend behind the 22 and repeat the process: 221 / 251

On to step 5:
221 divided by 251 is 0 with a remainder of 221.
The next digit of our result is 0. 
Result so far: 310.0
The remainder is 221 after subtracting 0 from 221.
Fetch the next digit (5) from the dividend, attach it to 221 and continue: 2215 / 251

On to step 6:
251 can be fit into 2215 8 times, resulting in a remainder of 207.
Write down 8 as next digit of the result. 
Result so far: 3108.0
If we subtract 2008 from 2215, we get 207.
Bring next digit (3) of the dividend behind the 207 and repeat the process: 2073 / 251

Advancing to step 7:
When dividing 2073 by 251, we get 8 with a remainder of 65.
The number 8 becomes the next digit in our result. 
Result so far: 31088.0
Subtract 2008 from 2073 to get 65.
Bring next digit (5) of the dividend behind the 65 and repeat the process: 655 / 251

Step 8:
The number 251 fits into 655 2 times, leaving a remainder of 153.
Write down 2 as next digit of the result. 
Result so far: 310882.0
Deduct 502 from 655 and we're left with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Moving on to step 9:
251 goes into 1530 6 times with a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 310882.6
The remainder is 24 after subtracting 1506 from 1530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 10:
If we divide 240 by 251, we get 0 and a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 310882.6
Subtract 0 from 240 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 11:
When dividing 2400 by 251, we get 9 with a remainder of 141.
Put 9 as the next digit of the answer. 
Result so far: 310882.609
If we take 2259 away from 2400, we end up with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Step 12:
When dividing 1410 by 251, we get 5 with a remainder of 155.
Write down 5 as next digit of the result. 
Result so far: 310882.6095
If we take 1255 away from 1410, we end up with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

On to step 13:
The number 251 fits into 1550 6 times, leaving a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 310882.60956
If we subtract 1506 from 1550, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 14:
251 goes into 440 1 times with a remainder of 189.
Record the quotient 1 as the next digit in the result. 
Result so far: 310882.609561
If we subtract 251 from 440, we get 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

On to step 15:
1890 divided by 251 is 7 with a remainder of 133.
The next digit of our result is 7. 
Result so far: 310882.6095617
Deduct 1757 from 1890 and we're left with 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

On to step 16:
251 can be fit into 1330 5 times, resulting in a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 310882.60956175
If we subtract 1255 from 1330, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

After the division, we end up with 310882.60956175 and a remainder of 7.5e-08.