Let's divide 618911 by 21
We're looking to find how many times 21 goes into 618911.

On to step 1:
6 divided by 21 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (1) from the dividend to 6 and continue with: 61 / 21

Let's proceed to step 2:
When dividing 61 by 21, we get 2 with a remainder of 19.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 42 away from 61, we end up with 19.
Grab the next digit (8) from the dividend, add it to 19, then carry on: 198 / 21

Let's proceed to step 3:
21 can be fit into 198 9 times, resulting in a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 29.0
If we take 189 away from 198, we end up with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 21

Advancing to step 4:
If we divide 99 by 21, we get 4 and a remainder of 15.
The number 4 becomes the next digit in our result. 
Result so far: 294.0
Subtract 84 from 99 to get 15.
Append the next digit (1) from the dividend to 15 and continue with: 151 / 21

Advancing to step 5:
21 can be fit into 151 7 times, resulting in a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 2947.0
Deduct 147 from 151 and we're left with 4.
Include the next digit (1) from the dividend after 4, then repeat: 41 / 21

Step 6:
41 divided by 21 is 1 with a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 29471.0
If we take 21 away from 41, we end up 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.

Let's proceed to step 7:
21 can be fit into 200 9 times, resulting in a remainder of 11.
The next digit of our result is 9. 
Result so far: 29471.9
If we subtract 189 from 200, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 8:
The number 21 fits into 110 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 29471.95
If we subtract 105 from 110, we get 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 9:
21 goes into 50 2 times with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 29471.952
If we subtract 42 from 50, we get 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 10:
80 divided by 21 is 3 with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 29471.9523
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.

Let's proceed to step 11:
If we divide 170 by 21, we get 8 and a remainder of 2.
The next digit of our result is 8. 
Result so far: 29471.95238
Subtracting 168 from 170 leaves us 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.

Let's proceed to step 12:
21 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 29471.95238
Subtracting 0 from 20 leaves us 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.

Step 13:
21 can be fit into 200 9 times, resulting in a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 29471.9523809
Subtract 189 from 200 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 14:
When dividing 110 by 21, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 29471.95238095
Subtracting 105 from 110 leaves us 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.

The final result is 29471.95238095 with a remainder of 5e-09.