We look at the division of 870243 by 22 
We want to divide 870243 by 22.

Moving on to step 1:
The number 22 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 22

Advancing to step 2:
The number 22 fits into 87 3 times, leaving a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 66 from 87 leaves us with 21.
Bring next digit (0) of the dividend behind the 21 and repeat the process: 210 / 22

Advancing to step 3:
210 divided by 22 is 9 with a remainder of 12.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
Subtract 198 from 210 to get 12.
Append the next digit (2) from the dividend to 12 and continue with: 122 / 22

Step 4:
When dividing 122 by 22, we get 5 with a remainder of 12.
The next digit of our result is 5. 
Result so far: 395.0
If we take 110 away from 122, we end up with 12.
Bring next digit (4) of the dividend behind the 12 and repeat the process: 124 / 22

Going ahead to step 5:
The number 22 fits into 124 5 times, leaving a remainder of 14.
The next digit of our result is 5. 
Result so far: 3955.0
Deduct 110 from 124 and we're left with 14.
Take the next digit (3) from the dividend and append it to 14, then repeat: 143 / 22

Advancing to step 6:
143 divided by 22 is 6 with a remainder of 11.
Record the quotient 6 as the next digit in the result. 
Result so far: 39556.0
If we subtract 132 from 143, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
22 can be fit into 110 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 39556.5
If we subtract 110 from 110, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
22 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 39556.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
If we divide 0 by 22, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 39556.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 39556.5 and a remainder of 0.0.