We look at the division of 78586107 by 803 
Let's see how many times 803 fits into 78586107.

On to step 1:
7 divided by 803 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 803

Advancing to step 2:
If we divide 78 by 803, we get 0 and a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Bring next digit (5) of the dividend behind the 78 and repeat the process: 785 / 803

On to step 3:
The number 803 fits into 785 0 times, leaving a remainder of 785.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 785, we end up with 785.
Append the next digit (8) from the dividend to 785 and continue with: 7858 / 803

Advancing to step 4:
The number 803 fits into 7858 9 times, leaving a remainder of 631.
Put 9 as the next digit of the answer. 
Result so far: 9.0
The remainder is 631 after subtracting 7227 from 7858.
Bring next digit (6) of the dividend behind the 631 and repeat the process: 6316 / 803

On to step 5:
The number 803 fits into 6316 7 times, leaving a remainder of 695.
Record the quotient 7 as the next digit in the result. 
Result so far: 97.0
Subtracting 5621 from 6316 leaves us with 695.
Append the next digit (1) from the dividend to 695 and continue with: 6951 / 803

Moving on to step 6:
When dividing 6951 by 803, we get 8 with a remainder of 527.
The number 8 becomes the next digit in our result. 
Result so far: 978.0
Subtracting 6424 from 6951 leaves us with 527.
Take the next digit (0) from the dividend and append it to 527, then repeat: 5270 / 803

On to step 7:
When dividing 5270 by 803, we get 6 with a remainder of 452.
Put 6 as the next digit of the answer. 
Result so far: 9786.0
Subtracting 4818 from 5270 leaves us with 452.
Fetch the next digit (7) from the dividend, attach it to 452 and continue: 4527 / 803

Step 8:
803 goes into 4527 5 times with a remainder of 512.
Write down 5 as next digit of the result. 
Result so far: 97865.0
If we subtract 4015 from 4527, we get 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Going ahead to step 9:
803 can be fit into 5120 6 times, resulting in a remainder of 302.
The next digit of our result is 6. 
Result so far: 97865.6
The remainder is 302 after subtracting 4818 from 5120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Step 10:
3020 divided by 803 is 3 with a remainder of 611.
The number 3 becomes the next digit in our result. 
Result so far: 97865.63
Deduct 2409 from 3020 and we're left with 611.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6110, and continue the process.

On to step 11:
803 can be fit into 6110 7 times, resulting in a remainder of 489.
Record the quotient 7 as the next digit in the result. 
Result so far: 97865.637
If we take 5621 away from 6110, we end up with 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Step 12:
803 can be fit into 4890 6 times, resulting in a remainder of 72.
Record the quotient 6 as the next digit in the result. 
Result so far: 97865.6376
If we subtract 4818 from 4890, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 13:
When dividing 720 by 803, we get 0 with a remainder of 720.
Write down 0 as next digit of the result. 
Result so far: 97865.6376
Deduct 0 from 720 and we're left with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Moving on to step 14:
7200 divided by 803 is 8 with a remainder of 776.
Write down 8 as next digit of the result. 
Result so far: 97865.637608
Deduct 6424 from 7200 and we're left with 776.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7760, and continue the process.

Advancing to step 15:
7760 divided by 803 is 9 with a remainder of 533.
Record the quotient 9 as the next digit in the result. 
Result so far: 97865.6376089
If we take 7227 away from 7760, we end up with 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 16:
If we divide 5330 by 803, we get 6 and a remainder of 512.
The number 6 becomes the next digit in our result. 
Result so far: 97865.63760896
If we take 4818 away from 5330, we end up with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

After the division, we end up with 97865.63760896 and a remainder of 5.12e-07.