654893 divided by 21 
Let's see how many times 21 fits into 654893.

On to step 1:
6 divided by 21 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (5) from the dividend after 6, then repeat: 65 / 21

Going ahead to step 2:
If we divide 65 by 21, we get 3 and a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 63 from 65 to get 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 21

Let's proceed to step 3:
When dividing 24 by 21, we get 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
Subtracting 21 from 24 leaves us with 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 21

On to step 4:
If we divide 38 by 21, we get 1 and a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 311.0
The remainder is 17 after subtracting 21 from 38.
Include the next digit (9) from the dividend after 17, then repeat: 179 / 21

Going ahead to step 5:
When dividing 179 by 21, we get 8 with a remainder of 11.
Write down 8 as next digit of the result. 
Result so far: 3118.0
The remainder is 11 after subtracting 168 from 179.
Include the next digit (3) from the dividend after 11, then repeat: 113 / 21

Let's proceed to step 6:
If we divide 113 by 21, we get 5 and a remainder of 8.
The number 5 becomes the next digit in our result. 
Result so far: 31185.0
Subtract 105 from 113 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 7:
21 goes into 80 3 times with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 31185.3
If we take 63 away from 80, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 8:
When dividing 170 by 21, we get 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 31185.38
The remainder is 2 after subtracting 168 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
20 divided by 21 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 31185.38
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 10:
21 goes into 200 9 times with a remainder of 11.
The next digit of our result is 9. 
Result so far: 31185.3809
Subtract 189 from 200 to 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 11:
If we divide 110 by 21, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 31185.38095
The remainder is 5 after subtracting 105 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 12:
If we divide 50 by 21, we get 2 and a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 31185.380952
If we subtract 42 from 50, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 13:
21 goes into 80 3 times with a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 31185.3809523
Deduct 63 from 80 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 14:
If we divide 170 by 21, we get 8 and a remainder of 2.
The next digit of our result is 8. 
Result so far: 31185.38095238
Deduct 168 from 170 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

In conclusion, the division gives 31185.38095238 with a balance of 2e-09.