21524765 ÷ 806 
Our goal is to divide 21524765 by 806.

Moving on to step 1:
2 divided by 806 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 806

Going ahead to step 2:
21 divided by 806 is 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (5) from the dividend and append it to 21, then repeat: 215 / 806

On to step 3:
806 goes into 215 0 times with a remainder of 215.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 215, we end up with 215.
Fetch the next digit (2) from the dividend, attach it to 215 and continue: 2152 / 806

Step 4:
If we divide 2152 by 806, we get 2 and a remainder of 540.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1612 from 2152 and we're left with 540.
Bring next digit (4) of the dividend behind the 540 and repeat the process: 5404 / 806

Advancing to step 5:
When dividing 5404 by 806, we get 6 with a remainder of 568.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
Subtracting 4836 from 5404 leaves us with 568.
Take the next digit (7) from the dividend and append it to 568, then repeat: 5687 / 806

Moving on to step 6:
806 goes into 5687 7 times with a remainder of 45.
Write down 7 as next digit of the result. 
Result so far: 267.0
Subtract 5642 from 5687 to get 45.
Append the next digit (6) from the dividend to 45 and continue with: 456 / 806

Let's proceed to step 7:
If we divide 456 by 806, we get 0 and a remainder of 456.
Record the quotient 0 as the next digit in the result. 
Result so far: 2670.0
If we subtract 0 from 456, we get 456.
Fetch the next digit (5) from the dividend, attach it to 456 and continue: 4565 / 806

On to step 8:
The number 806 fits into 4565 5 times, leaving a remainder of 535.
Write down 5 as next digit of the result. 
Result so far: 26705.0
Deduct 4030 from 4565 and we're left with 535.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Step 9:
806 goes into 5350 6 times with a remainder of 514.
Write down 6 as next digit of the result. 
Result so far: 26705.6
If we subtract 4836 from 5350, we get 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

On to step 10:
5140 divided by 806 is 6 with a remainder of 304.
The number 6 becomes the next digit in our result. 
Result so far: 26705.66
Deduct 4836 from 5140 and we're left with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

After the division, we end up with 26705.66 and a remainder of 0.304.