We look at the division of 21956173 by 873 
Our goal is to divide 21956173 by 873.

Advancing to step 1:
If we divide 2 by 873, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 873

Moving on to step 2:
If we divide 21 by 873, we get 0 and a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (9) from the dividend and append it to 21, then repeat: 219 / 873

On to step 3:
873 goes into 219 0 times with a remainder of 219.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 219 after subtracting 0 from 219.
Take the next digit (5) from the dividend and append it to 219, then repeat: 2195 / 873

Step 4:
873 can be fit into 2195 2 times, resulting in a remainder of 449.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 449 after subtracting 1746 from 2195.
Fetch the next digit (6) from the dividend, attach it to 449 and continue: 4496 / 873

Step 5:
873 goes into 4496 5 times with a remainder of 131.
Write down 5 as next digit of the result. 
Result so far: 25.0
Subtract 4365 from 4496 to get 131.
Append the next digit (1) from the dividend to 131 and continue with: 1311 / 873

Step 6:
If we divide 1311 by 873, we get 1 and a remainder of 438.
Put 1 as the next digit of the answer. 
Result so far: 251.0
Deduct 873 from 1311 and we're left with 438.
Grab the next digit (7) from the dividend, add it to 438, then carry on: 4387 / 873

Step 7:
873 can be fit into 4387 5 times, resulting in a remainder of 22.
Use 5 as the next digit of our solution. 
Result so far: 2515.0
The remainder is 22 after subtracting 4365 from 4387.
Bring next digit (3) of the dividend behind the 22 and repeat the process: 223 / 873

Advancing to step 8:
873 goes into 223 0 times with a remainder of 223.
Record the quotient 0 as the next digit in the result. 
Result so far: 25150.0
The remainder is 223 after subtracting 0 from 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Going ahead to step 9:
873 can be fit into 2230 2 times, resulting in a remainder of 484.
The number 2 becomes the next digit in our result. 
Result so far: 25150.2
Subtract 1746 from 2230 to get 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

On to step 10:
The number 873 fits into 4840 5 times, leaving a remainder of 475.
Write down 5 as next digit of the result. 
Result so far: 25150.25
If we subtract 4365 from 4840, we get 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Going ahead to step 11:
When dividing 4750 by 873, we get 5 with a remainder of 385.
The next digit of our result is 5. 
Result so far: 25150.255
If we take 4365 away from 4750, we end up with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Our division results in 25150.255 with a remaining 0.0385.