20266913 ÷ 821 
We're looking to find how many times 821 goes into 20266913.

On to step 1:
2 divided by 821 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 821

Step 2:
821 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Grab the next digit (2) from the dividend, add it to 20, then carry on: 202 / 821

Advancing to step 3:
821 can be fit into 202 0 times, resulting in a remainder of 202.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 202 after subtracting 0 from 202.
Grab the next digit (6) from the dividend, add it to 202, then carry on: 2026 / 821

On to step 4:
If we divide 2026 by 821, we get 2 and a remainder of 384.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1642 away from 2026, we end up with 384.
Fetch the next digit (6) from the dividend, attach it to 384 and continue: 3846 / 821

Advancing to step 5:
When dividing 3846 by 821, we get 4 with a remainder of 562.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtracting 3284 from 3846 leaves us with 562.
Bring next digit (9) of the dividend behind the 562 and repeat the process: 5629 / 821

Let's proceed to step 6:
821 goes into 5629 6 times with a remainder of 703.
The number 6 becomes the next digit in our result. 
Result so far: 246.0
If we subtract 4926 from 5629, we get 703.
Include the next digit (1) from the dividend after 703, then repeat: 7031 / 821

Let's proceed to step 7:
If we divide 7031 by 821, we get 8 and a remainder of 463.
Write down 8 as next digit of the result. 
Result so far: 2468.0
The remainder is 463 after subtracting 6568 from 7031.
Fetch the next digit (3) from the dividend, attach it to 463 and continue: 4633 / 821

Step 8:
When dividing 4633 by 821, we get 5 with a remainder of 528.
The number 5 becomes the next digit in our result. 
Result so far: 24685.0
If we take 4105 away from 4633, we end up with 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Advancing to step 9:
If we divide 5280 by 821, we get 6 and a remainder of 354.
The next digit of our result is 6. 
Result so far: 24685.6
Subtracting 4926 from 5280 leaves us with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Moving on to step 10:
821 can be fit into 3540 4 times, resulting in a remainder of 256.
Put 4 as the next digit of the answer. 
Result so far: 24685.64
Subtract 3284 from 3540 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Going ahead to step 11:
If we divide 2560 by 821, we get 3 and a remainder of 97.
Put 3 as the next digit of the answer. 
Result so far: 24685.643
If we take 2463 away from 2560, we end up with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

On to step 12:
When dividing 970 by 821, we get 1 with a remainder of 149.
Use 1 as the next digit of our solution. 
Result so far: 24685.6431
Subtract 821 from 970 to get 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Step 13:
If we divide 1490 by 821, we get 1 and a remainder of 669.
The number 1 becomes the next digit in our result. 
Result so far: 24685.64311
Subtract 821 from 1490 to get 669.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6690, and continue the process.

The final result is 24685.64311 with a remainder of 0.000669.