Let's divide 627558 by 21
We're looking to find how many times 21 goes into 627558.

Step 1:
When dividing 6 by 21, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 21

Advancing to step 2:
When dividing 62 by 21, we get 2 with a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 20 after subtracting 42 from 62.
Take the next digit (7) from the dividend and append it to 20, then repeat: 207 / 21

Step 3:
21 goes into 207 9 times with a remainder of 18.
Put 9 as the next digit of the answer. 
Result so far: 29.0
The remainder is 18 after subtracting 189 from 207.
Take the next digit (5) from the dividend and append it to 18, then repeat: 185 / 21

Moving on to step 4:
185 divided by 21 is 8 with a remainder of 17.
Write down 8 as next digit of the result. 
Result so far: 298.0
If we subtract 168 from 185, we get 17.
Append the next digit (5) from the dividend to 17 and continue with: 175 / 21

Moving on to step 5:
The number 21 fits into 175 8 times, leaving a remainder of 7.
Write down 8 as next digit of the result. 
Result so far: 2988.0
If we take 168 away from 175, we end up with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 21

Moving on to step 6:
If we divide 78 by 21, we get 3 and a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 29883.0
Subtracting 63 from 78 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
21 can be fit into 150 7 times, resulting in a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 29883.7
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 8:
The number 21 fits into 30 1 times, leaving a remainder of 9.
Record the quotient 1 as the next digit in the result. 
Result so far: 29883.71
Subtracting 21 from 30 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 9:
21 can be fit into 90 4 times, resulting in a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 29883.714
If we subtract 84 from 90, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 10:
If we divide 60 by 21, we get 2 and a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 29883.7142
Subtracting 42 from 60 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 11:
180 divided by 21 is 8 with a remainder of 12.
The next digit of our result is 8. 
Result so far: 29883.71428
Subtract 168 from 180 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 12:
If we divide 120 by 21, we get 5 and a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 29883.714285
Subtracting 105 from 120 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 13:
When dividing 150 by 21, we get 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 29883.7142857
The remainder is 3 after subtracting 147 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 14:
21 can be fit into 30 1 times, resulting in a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 29883.71428571
If we take 21 away from 30, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

After the division, we end up with 29883.71428571 and a remainder of 9e-09.