We're dividing 274218 by 21 
We want to figure out the number of times 274218 can be divided by 21.

Advancing to step 1:
If we divide 2 by 21, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 21

On to step 2:
The number 21 fits into 27 1 times, leaving a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 21 from 27, we get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 21

Step 3:
21 can be fit into 64 3 times, resulting in a remainder of 1.
The next digit of our result is 3. 
Result so far: 13.0
Subtract 63 from 64 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 21

Advancing to step 4:
When dividing 12 by 21, we get 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 130.0
The remainder is 12 after subtracting 0 from 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 21

Let's proceed to step 5:
The number 21 fits into 121 5 times, leaving a remainder of 16.
Use 5 as the next digit of our solution. 
Result so far: 1305.0
If we subtract 105 from 121, we get 16.
Include the next digit (8) from the dividend after 16, then repeat: 168 / 21

Going ahead to step 6:
21 can be fit into 168 8 times, resulting in a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 13058.0
Subtracting 168 from 168 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.

Step 7:
The number 21 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 13058.0
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.

Step 8:
When dividing 0 by 21, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 13058.0
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.

The final result is 13058.0 with a remainder of 0.0.