We divide 21998 by 85
Let's see how many times 85 fits into 21998.

On to step 1:
2 divided by 85 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 85

Advancing to step 2:
The number 85 fits into 21 0 times, leaving a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Append the next digit (9) from the dividend to 21 and continue with: 219 / 85

Let's proceed to step 3:
85 goes into 219 2 times with a remainder of 49.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 170 away from 219, we end up with 49.
Fetch the next digit (9) from the dividend, attach it to 49 and continue: 499 / 85

Going ahead to step 4:
85 can be fit into 499 5 times, resulting in a remainder of 74.
Put 5 as the next digit of the answer. 
Result so far: 25.0
If we subtract 425 from 499, we get 74.
Bring next digit (8) of the dividend behind the 74 and repeat the process: 748 / 85

Moving on to step 5:
The number 85 fits into 748 8 times, leaving a remainder of 68.
The number 8 becomes the next digit in our result. 
Result so far: 258.0
Subtracting 680 from 748 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 6:
The number 85 fits into 680 8 times, leaving a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 258.8
Subtracting 680 from 680 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
If we divide 0 by 85, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 258.8
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.

Step 8:
The number 85 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 258.8
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 258.8 with a balance of 0.0.