Let's divide 20821989 by 6
We want to figure out the number of times 20821989 can be divided by 6.

Moving on to step 1:
The number 6 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 6

Going ahead to step 2:
20 divided by 6 is 3 with a remainder of 2.
The next digit of our result is 3. 
Result so far: 3.0
If we take 18 away from 20, we end up with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 6

Moving on to step 3:
28 divided by 6 is 4 with a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 34.0
Deduct 24 from 28 and we're left with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 6

Let's proceed to step 4:
42 divided by 6 is 7 with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 347.0
If we subtract 42 from 42, we get 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 6

On to step 5:
When dividing 1 by 6, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 3470.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 6

Step 6:
6 goes into 19 3 times with a remainder of 1.
The next digit of our result is 3. 
Result so far: 34703.0
If we subtract 18 from 19, we get 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 6

Let's proceed to step 7:
6 goes into 18 3 times with a remainder of 0.
The next digit of our result is 3. 
Result so far: 347033.0
If we subtract 18 from 18, we get 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 6

On to step 8:
If we divide 9 by 6, we get 1 and a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 3470331.0
If we subtract 6 from 9, 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.

Advancing to step 9:
6 can be fit into 30 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 3470331.5
The remainder is 0 after subtracting 30 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
6 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 3470331.5
If we take 0 away from 0, we end up 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.

Moving on to step 11:
If we divide 0 by 6, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3470331.5
If we take 0 away from 0, we end up 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.

In conclusion, the division gives 3470331.5 with a balance of 0.0.