We look at the division of 40665589 by 875 
We want to divide 40665589 by 875.

Step 1:
If we divide 4 by 875, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 875

Moving on to step 2:
When dividing 40 by 875, we get 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Grab the next digit (6) from the dividend, add it to 40, then carry on: 406 / 875

On to step 3:
875 can be fit into 406 0 times, resulting in a remainder of 406.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 406 and we're left with 406.
Append the next digit (6) from the dividend to 406 and continue with: 4066 / 875

Advancing to step 4:
The number 875 fits into 4066 4 times, leaving a remainder of 566.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 3500 from 4066, we get 566.
Take the next digit (5) from the dividend and append it to 566, then repeat: 5665 / 875

Step 5:
If we divide 5665 by 875, we get 6 and a remainder of 415.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
Deduct 5250 from 5665 and we're left with 415.
Append the next digit (5) from the dividend to 415 and continue with: 4155 / 875

Going ahead to step 6:
The number 875 fits into 4155 4 times, leaving a remainder of 655.
The next digit of our result is 4. 
Result so far: 464.0
If we take 3500 away from 4155, we end up with 655.
Include the next digit (8) from the dividend after 655, then repeat: 6558 / 875

Going ahead to step 7:
6558 divided by 875 is 7 with a remainder of 433.
Put 7 as the next digit of the answer. 
Result so far: 4647.0
Subtract 6125 from 6558 to get 433.
Take the next digit (9) from the dividend and append it to 433, then repeat: 4339 / 875

On to step 8:
The number 875 fits into 4339 4 times, leaving a remainder of 839.
The number 4 becomes the next digit in our result. 
Result so far: 46474.0
If we subtract 3500 from 4339, we get 839.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8390, and continue the process.

On to step 9:
The number 875 fits into 8390 9 times, leaving a remainder of 515.
Put 9 as the next digit of the answer. 
Result so far: 46474.9
Subtract 7875 from 8390 to get 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Advancing to step 10:
When dividing 5150 by 875, we get 5 with a remainder of 775.
The next digit of our result is 5. 
Result so far: 46474.95
Subtracting 4375 from 5150 leaves us with 775.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7750, and continue the process.

Step 11:
When dividing 7750 by 875, we get 8 with a remainder of 750.
The next digit of our result is 8. 
Result so far: 46474.958
If we subtract 7000 from 7750, we get 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Moving on to step 12:
When dividing 7500 by 875, we get 8 with a remainder of 500.
The number 8 becomes the next digit in our result. 
Result so far: 46474.9588
The remainder is 500 after subtracting 7000 from 7500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

After the division, we end up with 46474.9588 and a remainder of 0.005.