855221 divided by 45 
Let's see how many times 45 fits into 855221.

On to step 1:
45 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 45

On to step 2:
When dividing 85 by 45, we get 1 with a remainder of 40.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 45 from 85 to get 40.
Bring next digit (5) of the dividend behind the 40 and repeat the process: 405 / 45

Advancing to step 3:
45 can be fit into 405 9 times, resulting in a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 19.0
The remainder is 0 after subtracting 405 from 405.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 45

Advancing to step 4:
The number 45 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 190.0
If we take 0 away from 2, we end up with 2.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 45

On to step 5:
45 can be fit into 22 0 times, resulting in a remainder of 22.
Write down 0 as next digit of the result. 
Result so far: 1900.0
The remainder is 22 after subtracting 0 from 22.
Take the next digit (1) from the dividend and append it to 22, then repeat: 221 / 45

Step 6:
45 goes into 221 4 times with a remainder of 41.
The number 4 becomes the next digit in our result. 
Result so far: 19004.0
If we subtract 180 from 221, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 7:
410 divided by 45 is 9 with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 19004.9
The remainder is 5 after subtracting 405 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
When dividing 50 by 45, we get 1 with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 19004.91
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
The number 45 fits into 50 1 times, leaving a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 19004.911
Subtract 45 from 50 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final outcome is 19004.911, with a leftover of 0.0005.