We look at the division of 625145 by 21 
Let's see how many times 21 fits into 625145.

On to step 1:
The number 21 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (2) from the dividend and append it to 6, then repeat: 62 / 21

Moving on to step 2:
The number 21 fits into 62 2 times, leaving a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 20 after subtracting 42 from 62.
Bring next digit (5) of the dividend behind the 20 and repeat the process: 205 / 21

Moving on to step 3:
When dividing 205 by 21, we get 9 with a remainder of 16.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
Deduct 189 from 205 and we're left with 16.
Grab the next digit (1) from the dividend, add it to 16, then carry on: 161 / 21

Moving on to step 4:
161 divided by 21 is 7 with a remainder of 14.
Write down 7 as next digit of the result. 
Result so far: 297.0
The remainder is 14 after subtracting 147 from 161.
Append the next digit (4) from the dividend to 14 and continue with: 144 / 21

Let's proceed to step 5:
21 can be fit into 144 6 times, resulting in a remainder of 18.
The number 6 becomes the next digit in our result. 
Result so far: 2976.0
If we subtract 126 from 144, we get 18.
Fetch the next digit (5) from the dividend, attach it to 18 and continue: 185 / 21

Let's proceed to step 6:
The number 21 fits into 185 8 times, leaving a remainder of 17.
The number 8 becomes the next digit in our result. 
Result so far: 29768.0
The remainder is 17 after subtracting 168 from 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 7:
170 divided by 21 is 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 29768.8
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.

On to step 8:
21 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 29768.8
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
When dividing 200 by 21, we get 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 29768.809
The remainder is 11 after subtracting 189 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 10:
If we divide 110 by 21, we get 5 and a remainder of 5.
The next digit of our result is 5. 
Result so far: 29768.8095
Deduct 105 from 110 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 11:
21 goes into 50 2 times with a remainder of 8.
The next digit of our result is 2. 
Result so far: 29768.80952
Subtracting 42 from 50 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 12:
The number 21 fits into 80 3 times, leaving a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 29768.809523
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.

Advancing to step 13:
21 can be fit into 170 8 times, resulting in a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 29768.8095238
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.

Moving on to step 14:
20 divided by 21 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 29768.8095238
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.

The final result is 29768.8095238 with a remainder of 2e-08.