We're dividing 17580335 by 987 
We want to divide 17580335 by 987.

Advancing to step 1:
987 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 987

Moving on to step 2:
The number 987 fits into 17 0 times, leaving a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Take the next digit (5) from the dividend and append it to 17, then repeat: 175 / 987

Advancing to step 3:
987 goes into 175 0 times with a remainder of 175.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 175 to get 175.
Bring next digit (8) of the dividend behind the 175 and repeat the process: 1758 / 987

Advancing to step 4:
987 goes into 1758 1 times with a remainder of 771.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 987 from 1758 to get 771.
Append the next digit (0) from the dividend to 771 and continue with: 7710 / 987

Let's proceed to step 5:
987 can be fit into 7710 7 times, resulting in a remainder of 801.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtract 6909 from 7710 to get 801.
Append the next digit (3) from the dividend to 801 and continue with: 8013 / 987

Step 6:
When dividing 8013 by 987, we get 8 with a remainder of 117.
Record the quotient 8 as the next digit in the result. 
Result so far: 178.0
Subtracting 7896 from 8013 leaves us with 117.
Grab the next digit (3) from the dividend, add it to 117, then carry on: 1173 / 987

Advancing to step 7:
The number 987 fits into 1173 1 times, leaving a remainder of 186.
Use 1 as the next digit of our solution. 
Result so far: 1781.0
If we subtract 987 from 1173, we get 186.
Include the next digit (5) from the dividend after 186, then repeat: 1865 / 987

Going ahead to step 8:
987 goes into 1865 1 times with a remainder of 878.
Record the quotient 1 as the next digit in the result. 
Result so far: 17811.0
Deduct 987 from 1865 and we're left with 878.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8780, and continue the process.

Step 9:
If we divide 8780 by 987, we get 8 and a remainder of 884.
The number 8 becomes the next digit in our result. 
Result so far: 17811.8
Deduct 7896 from 8780 and we're left with 884.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8840, and continue the process.

Going ahead to step 10:
If we divide 8840 by 987, we get 8 and a remainder of 944.
The next digit of our result is 8. 
Result so far: 17811.88
If we subtract 7896 from 8840, we get 944.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9440, and continue the process.

The quotient of the division is 17811.88, and the remainder is 0.944.