We look at the division of 715621 by 25 
We want to divide 715621 by 25.

Advancing to step 1:
If we divide 7 by 25, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 25

On to step 2:
25 can be fit into 71 2 times, resulting in a remainder of 21.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 50 from 71, we get 21.
Grab the next digit (5) from the dividend, add it to 21, then carry on: 215 / 25

Let's proceed to step 3:
25 goes into 215 8 times with a remainder of 15.
Put 8 as the next digit of the answer. 
Result so far: 28.0
Subtracting 200 from 215 leaves us with 15.
Include the next digit (6) from the dividend after 15, then repeat: 156 / 25

Step 4:
156 divided by 25 is 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 286.0
The remainder is 6 after subtracting 150 from 156.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 25

Moving on to step 5:
The number 25 fits into 62 2 times, leaving a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 2862.0
The remainder is 12 after subtracting 50 from 62.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 25

On to step 6:
121 divided by 25 is 4 with a remainder of 21.
Write down 4 as next digit of the result. 
Result so far: 28624.0
Subtract 100 from 121 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 7:
The number 25 fits into 210 8 times, leaving a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 28624.8
If we take 200 away from 210, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
The number 25 fits into 100 4 times, leaving a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 28624.84
Subtracting 100 from 100 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 9:
25 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 28624.84
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.

Step 10:
The number 25 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 28624.84
If we subtract 0 from 0, 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.

The final result is 28624.84 with a remainder of 0.0.