Let's divide 868404 by 45
We're looking to find how many times 45 goes into 868404.

Moving on to step 1:
When dividing 8 by 45, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 45

Going ahead to step 2:
The number 45 fits into 86 1 times, leaving a remainder of 41.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 41 after subtracting 45 from 86.
Include the next digit (8) from the dividend after 41, then repeat: 418 / 45

Going ahead to step 3:
When dividing 418 by 45, we get 9 with a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtract 405 from 418 to get 13.
Include the next digit (4) from the dividend after 13, then repeat: 134 / 45

Going ahead to step 4:
45 goes into 134 2 times with a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 192.0
Deduct 90 from 134 and we're left with 44.
Fetch the next digit (0) from the dividend, attach it to 44 and continue: 440 / 45

Let's proceed to step 5:
If we divide 440 by 45, we get 9 and a remainder of 35.
Use 9 as the next digit of our solution. 
Result so far: 1929.0
The remainder is 35 after subtracting 405 from 440.
Grab the next digit (4) from the dividend, add it to 35, then carry on: 354 / 45

Advancing to step 6:
If we divide 354 by 45, we get 7 and a remainder of 39.
The next digit of our result is 7. 
Result so far: 19297.0
Subtracting 315 from 354 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 7:
390 divided by 45 is 8 with a remainder of 30.
The next digit of our result is 8. 
Result so far: 19297.8
Deduct 360 from 390 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
45 can be fit into 300 6 times, resulting in a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 19297.86
Subtracting 270 from 300 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
45 can be fit into 300 6 times, resulting in a remainder of 30.
Record the quotient 6 as the next digit in the result. 
Result so far: 19297.866
Subtract 270 from 300 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 19297.866 and a remainder of 0.003.