Let's divide 815514 by 21
We want to figure out the number of times 815514 can be divided by 21.

On to step 1:
The number 21 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 21

Advancing to step 2:
If we divide 81 by 21, we get 3 and a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 63 from 81 to get 18.
Include the next digit (5) from the dividend after 18, then repeat: 185 / 21

Moving on to step 3:
21 goes into 185 8 times with a remainder of 17.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
Subtract 168 from 185 to get 17.
Include the next digit (5) from the dividend after 17, then repeat: 175 / 21

On to step 4:
The number 21 fits into 175 8 times, leaving a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 388.0
Subtract 168 from 175 to get 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 21

Going ahead to step 5:
When dividing 71 by 21, we get 3 with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 3883.0
The remainder is 8 after subtracting 63 from 71.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 21

Going ahead to step 6:
If we divide 84 by 21, we get 4 and a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 38834.0
If we subtract 84 from 84, 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.

Step 7:
When dividing 0 by 21, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 38834.0
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.

Going ahead to step 8:
If we divide 0 by 21, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 38834.0
The remainder is 0 after subtracting 0 from 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 38834.0 with a balance of 0.0.