21856969 divided by 515 
We want to divide 21856969 by 515.

Step 1:
If we divide 2 by 515, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 515

Going ahead to step 2:
When dividing 21 by 515, we get 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 515

Going ahead to step 3:
515 can be fit into 218 0 times, resulting in a remainder of 218.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 218 and we're left with 218.
Grab the next digit (5) from the dividend, add it to 218, then carry on: 2185 / 515

Advancing to step 4:
2185 divided by 515 is 4 with a remainder of 125.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 125 after subtracting 2060 from 2185.
Fetch the next digit (6) from the dividend, attach it to 125 and continue: 1256 / 515

Let's proceed to step 5:
1256 divided by 515 is 2 with a remainder of 226.
The next digit of our result is 2. 
Result so far: 42.0
The remainder is 226 after subtracting 1030 from 1256.
Include the next digit (9) from the dividend after 226, then repeat: 2269 / 515

Advancing to step 6:
515 can be fit into 2269 4 times, resulting in a remainder of 209.
The number 4 becomes the next digit in our result. 
Result so far: 424.0
Subtract 2060 from 2269 to get 209.
Include the next digit (6) from the dividend after 209, then repeat: 2096 / 515

Going ahead to step 7:
515 goes into 2096 4 times with a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 4244.0
Deduct 2060 from 2096 and we're left with 36.
Include the next digit (9) from the dividend after 36, then repeat: 369 / 515

On to step 8:
When dividing 369 by 515, we get 0 with a remainder of 369.
Record the quotient 0 as the next digit in the result. 
Result so far: 42440.0
Deduct 0 from 369 and we're left with 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Going ahead to step 9:
515 can be fit into 3690 7 times, resulting in a remainder of 85.
The next digit of our result is 7. 
Result so far: 42440.7
Subtract 3605 from 3690 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 10:
When dividing 850 by 515, we get 1 with a remainder of 335.
Use 1 as the next digit of our solution. 
Result so far: 42440.71
The remainder is 335 after subtracting 515 from 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Let's proceed to step 11:
515 goes into 3350 6 times with a remainder of 260.
The next digit of our result is 6. 
Result so far: 42440.716
If we subtract 3090 from 3350, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 12:
515 can be fit into 2600 5 times, resulting in a remainder of 25.
The next digit of our result is 5. 
Result so far: 42440.7165
Deduct 2575 from 2600 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 13:
If we divide 250 by 515, we get 0 and a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 42440.7165
If we subtract 0 from 250, we get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Advancing to step 14:
If we divide 2500 by 515, we get 4 and a remainder of 440.
Use 4 as the next digit of our solution. 
Result so far: 42440.716504
If we subtract 2060 from 2500, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Let's proceed to step 15:
4400 divided by 515 is 8 with a remainder of 280.
Write down 8 as next digit of the result. 
Result so far: 42440.7165048
The remainder is 280 after subtracting 4120 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 16:
If we divide 2800 by 515, we get 5 and a remainder of 225.
The number 5 becomes the next digit in our result. 
Result so far: 42440.71650485
If we take 2575 away from 2800, we end up with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

The final outcome is 42440.71650485, with a leftover of 2.25e-07.