We're dividing 618876 by 21 
We're looking to find how many times 21 goes into 618876.

Moving on to step 1:
If we divide 6 by 21, we get 0 and 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.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 21

On to step 2:
If we divide 61 by 21, we get 2 and a remainder of 19.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 42 from 61 leaves us with 19.
Include the next digit (8) from the dividend after 19, then repeat: 198 / 21

Advancing to step 3:
When dividing 198 by 21, we get 9 with a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 29.0
If we subtract 189 from 198, we get 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 21

On to step 4:
The number 21 fits into 98 4 times, leaving a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 294.0
If we subtract 84 from 98, we get 14.
Fetch the next digit (7) from the dividend, attach it to 14 and continue: 147 / 21

On to step 5:
If we divide 147 by 21, we get 7 and a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 2947.0
If we take 147 away from 147, we end up with 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 21

Let's proceed to step 6:
If we divide 6 by 21, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 29470.0
If we take 0 away from 6, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
21 goes into 60 2 times with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 29470.2
If we take 42 away from 60, we end up 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 8:
21 goes into 180 8 times with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 29470.28
If we subtract 168 from 180, we 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.

Advancing to step 9:
The number 21 fits into 120 5 times, leaving a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 29470.285
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 10:
When dividing 150 by 21, we get 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 29470.2857
If we subtract 147 from 150, we 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.

Going ahead to step 11:
21 goes into 30 1 times with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 29470.28571
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.

Step 12:
21 goes into 90 4 times with a remainder of 6.
The next digit of our result is 4. 
Result so far: 29470.285714
Deduct 84 from 90 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 13:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 29470.2857142
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 14:
180 divided by 21 is 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 29470.28571428
Subtracting 168 from 180 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 29470.28571428, and the remainder is 1.2e-08.