20697660 ÷ 810 
Our goal is to divide 20697660 by 810.

Moving on to step 1:
The number 810 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 810

Let's proceed to step 2:
810 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Append the next digit (6) from the dividend to 20 and continue with: 206 / 810

Going ahead to step 3:
The number 810 fits into 206 0 times, leaving a remainder of 206.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 206, we end up with 206.
Include the next digit (9) from the dividend after 206, then repeat: 2069 / 810

Going ahead to step 4:
810 goes into 2069 2 times with a remainder of 449.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 449 after subtracting 1620 from 2069.
Fetch the next digit (7) from the dividend, attach it to 449 and continue: 4497 / 810

Advancing to step 5:
810 goes into 4497 5 times with a remainder of 447.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Subtract 4050 from 4497 to get 447.
Append the next digit (6) from the dividend to 447 and continue with: 4476 / 810

Let's proceed to step 6:
The number 810 fits into 4476 5 times, leaving a remainder of 426.
Use 5 as the next digit of our solution. 
Result so far: 255.0
Subtracting 4050 from 4476 leaves us with 426.
Take the next digit (6) from the dividend and append it to 426, then repeat: 4266 / 810

Let's proceed to step 7:
810 goes into 4266 5 times with a remainder of 216.
The number 5 becomes the next digit in our result. 
Result so far: 2555.0
If we take 4050 away from 4266, we end up with 216.
Bring next digit (0) of the dividend behind the 216 and repeat the process: 2160 / 810

Step 8:
2160 divided by 810 is 2 with a remainder of 540.
Use 2 as the next digit of our solution. 
Result so far: 25552.0
Subtract 1620 from 2160 to get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Let's proceed to step 9:
The number 810 fits into 5400 6 times, leaving a remainder of 540.
The next digit of our result is 6. 
Result so far: 25552.6
Subtracting 4860 from 5400 leaves us with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Step 10:
When dividing 5400 by 810, we get 6 with a remainder of 540.
Put 6 as the next digit of the answer. 
Result so far: 25552.66
If we subtract 4860 from 5400, we get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Our division results in 25552.66 with a remaining 0.54.