We're dividing 21452421 by 898 
We want to divide 21452421 by 898.

Going ahead to step 1:
898 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 898

Let's proceed to step 2:
When dividing 21 by 898, we get 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Bring next digit (4) of the dividend behind the 21 and repeat the process: 214 / 898

Moving on to step 3:
214 divided by 898 is 0 with a remainder of 214.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 214, we get 214.
Fetch the next digit (5) from the dividend, attach it to 214 and continue: 2145 / 898

Moving on to step 4:
2145 divided by 898 is 2 with a remainder of 349.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 1796 from 2145 and we're left with 349.
Grab the next digit (2) from the dividend, add it to 349, then carry on: 3492 / 898

Going ahead to step 5:
When dividing 3492 by 898, we get 3 with a remainder of 798.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we subtract 2694 from 3492, we get 798.
Grab the next digit (4) from the dividend, add it to 798, then carry on: 7984 / 898

Advancing to step 6:
898 can be fit into 7984 8 times, resulting in a remainder of 800.
Write down 8 as next digit of the result. 
Result so far: 238.0
Deduct 7184 from 7984 and we're left with 800.
Include the next digit (2) from the dividend after 800, then repeat: 8002 / 898

Advancing to step 7:
If we divide 8002 by 898, we get 8 and a remainder of 818.
Use 8 as the next digit of our solution. 
Result so far: 2388.0
Subtracting 7184 from 8002 leaves us with 818.
Append the next digit (1) from the dividend to 818 and continue with: 8181 / 898

Let's proceed to step 8:
8181 divided by 898 is 9 with a remainder of 99.
Write down 9 as next digit of the result. 
Result so far: 23889.0
If we subtract 8082 from 8181, we get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Moving on to step 9:
The number 898 fits into 990 1 times, leaving a remainder of 92.
Use 1 as the next digit of our solution. 
Result so far: 23889.1
The remainder is 92 after subtracting 898 from 990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 10:
The number 898 fits into 920 1 times, leaving a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 23889.11
Deduct 898 from 920 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 23889.11, with a leftover of 0.022.