Let's divide 811177 by 21
We want to figure out the number of times 811177 can be divided by 21.

Moving on to step 1:
21 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 21

On to step 2:
If we divide 81 by 21, we get 3 and a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 63 from 81 leaves us with 18.
Bring next digit (1) of the dividend behind the 18 and repeat the process: 181 / 21

Advancing to step 3:
When dividing 181 by 21, we get 8 with a remainder of 13.
Write down 8 as next digit of the result. 
Result so far: 38.0
Deduct 168 from 181 and we're left with 13.
Fetch the next digit (1) from the dividend, attach it to 13 and continue: 131 / 21

Moving on to step 4:
The number 21 fits into 131 6 times, leaving a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 386.0
If we take 126 away from 131, we end up with 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 21

On to step 5:
When dividing 57 by 21, we get 2 with a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 3862.0
If we subtract 42 from 57, we get 15.
Bring next digit (7) of the dividend behind the 15 and repeat the process: 157 / 21

Advancing to step 6:
If we divide 157 by 21, we get 7 and a remainder of 10.
The next digit of our result is 7. 
Result so far: 38627.0
If we take 147 away from 157, 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.

Advancing to step 7:
21 can be fit into 100 4 times, resulting in a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 38627.4
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 8:
The number 21 fits into 160 7 times, leaving a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 38627.47
Subtracting 147 from 160 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 9:
21 goes into 130 6 times with a remainder of 4.
The next digit of our result is 6. 
Result so far: 38627.476
The remainder is 4 after subtracting 126 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
The number 21 fits into 40 1 times, leaving a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 38627.4761
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 11:
21 can be fit into 190 9 times, resulting in a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 38627.47619
The remainder is 1 after subtracting 189 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 12:
If we divide 10 by 21, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 38627.47619
If we take 0 away from 10, 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.

Let's proceed to step 13:
21 can be fit into 100 4 times, resulting in a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 38627.4761904
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 14:
21 goes into 160 7 times with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 38627.47619047
Subtracting 147 from 160 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final result is 38627.47619047 with a remainder of 1.3e-08.