We're dividing 21809374 by 505 
Our goal is to divide 21809374 by 505.

Advancing to step 1:
The number 505 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 505

On to step 2:
When dividing 21 by 505, we get 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Append the next digit (8) from the dividend to 21 and continue with: 218 / 505

Advancing to step 3:
When dividing 218 by 505, we get 0 with a remainder of 218.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 218 leaves us with 218.
Fetch the next digit (0) from the dividend, attach it to 218 and continue: 2180 / 505

Moving on to step 4:
When dividing 2180 by 505, we get 4 with a remainder of 160.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 2020 from 2180 and we're left with 160.
Take the next digit (9) from the dividend and append it to 160, then repeat: 1609 / 505

Step 5:
When dividing 1609 by 505, we get 3 with a remainder of 94.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
Deduct 1515 from 1609 and we're left with 94.
Include the next digit (3) from the dividend after 94, then repeat: 943 / 505

Step 6:
When dividing 943 by 505, we get 1 with a remainder of 438.
Use 1 as the next digit of our solution. 
Result so far: 431.0
Subtracting 505 from 943 leaves us with 438.
Append the next digit (7) from the dividend to 438 and continue with: 4387 / 505

Moving on to step 7:
4387 divided by 505 is 8 with a remainder of 347.
Record the quotient 8 as the next digit in the result. 
Result so far: 4318.0
Subtracting 4040 from 4387 leaves us with 347.
Bring next digit (4) of the dividend behind the 347 and repeat the process: 3474 / 505

Let's proceed to step 8:
3474 divided by 505 is 6 with a remainder of 444.
Use 6 as the next digit of our solution. 
Result so far: 43186.0
The remainder is 444 after subtracting 3030 from 3474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

On to step 9:
The number 505 fits into 4440 8 times, leaving a remainder of 400.
Put 8 as the next digit of the answer. 
Result so far: 43186.8
If we take 4040 away from 4440, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 10:
505 can be fit into 4000 7 times, resulting in a remainder of 465.
The number 7 becomes the next digit in our result. 
Result so far: 43186.87
The remainder is 465 after subtracting 3535 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

On to step 11:
If we divide 4650 by 505, we get 9 and a remainder of 105.
Record the quotient 9 as the next digit in the result. 
Result so far: 43186.879
If we subtract 4545 from 4650, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Let's proceed to step 12:
The number 505 fits into 1050 2 times, leaving a remainder of 40.
Use 2 as the next digit of our solution. 
Result so far: 43186.8792
Deduct 1010 from 1050 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 13:
The number 505 fits into 400 0 times, leaving a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 43186.8792
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 14:
4000 divided by 505 is 7 with a remainder of 465.
Record the quotient 7 as the next digit in the result. 
Result so far: 43186.879207
If we subtract 3535 from 4000, we get 465.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

Let's proceed to step 15:
505 goes into 4650 9 times with a remainder of 105.
Put 9 as the next digit of the answer. 
Result so far: 43186.8792079
The remainder is 105 after subtracting 4545 from 4650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Step 16:
When dividing 1050 by 505, we get 2 with a remainder of 40.
The number 2 becomes the next digit in our result. 
Result so far: 43186.87920792
The remainder is 40 after subtracting 1010 from 1050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 43186.87920792, with a leftover of 4e-08.