We look at the division of 852843 by 45 
Let's see how many times 45 fits into 852843.

Let's proceed to step 1:
If we divide 8 by 45, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 45

Let's proceed to step 2:
45 can be fit into 85 1 times, resulting in a remainder of 40.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 45 away from 85, we end up with 40.
Grab the next digit (2) from the dividend, add it to 40, then carry on: 402 / 45

On to step 3:
45 can be fit into 402 8 times, resulting in a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Subtract 360 from 402 to get 42.
Take the next digit (8) from the dividend and append it to 42, then repeat: 428 / 45

Going ahead to step 4:
When dividing 428 by 45, we get 9 with a remainder of 23.
Use 9 as the next digit of our solution. 
Result so far: 189.0
If we subtract 405 from 428, we get 23.
Grab the next digit (4) from the dividend, add it to 23, then carry on: 234 / 45

Going ahead to step 5:
45 goes into 234 5 times with a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 1895.0
If we take 225 away from 234, we end up with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 45

Let's proceed to step 6:
45 goes into 93 2 times with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 18952.0
Subtracting 90 from 93 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
45 can be fit into 30 0 times, resulting in a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 18952.0
Subtracting 0 from 30 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 8:
300 divided by 45 is 6 with a remainder of 30.
Record the quotient 6 as the next digit in the result. 
Result so far: 18952.06
If we subtract 270 from 300, we 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.

On to step 9:
If we divide 300 by 45, we get 6 and a remainder of 30.
The next digit of our result is 6. 
Result so far: 18952.066
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 18952.066 and a remainder of 0.003.