18209209 ÷ 810 
Let's see how many times 810 fits into 18209209.

Moving on to step 1:
If we divide 1 by 810, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 810

Let's proceed to step 2:
The number 810 fits into 18 0 times, leaving a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 18 leaves us with 18.
Include the next digit (2) from the dividend after 18, then repeat: 182 / 810

Moving on to step 3:
182 divided by 810 is 0 with a remainder of 182.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 182 after subtracting 0 from 182.
Append the next digit (0) from the dividend to 182 and continue with: 1820 / 810

Let's proceed to step 4:
When dividing 1820 by 810, we get 2 with a remainder of 200.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 1620 away from 1820, we end up with 200.
Append the next digit (9) from the dividend to 200 and continue with: 2009 / 810

Step 5:
The number 810 fits into 2009 2 times, leaving a remainder of 389.
Use 2 as the next digit of our solution. 
Result so far: 22.0
Subtracting 1620 from 2009 leaves us with 389.
Take the next digit (2) from the dividend and append it to 389, then repeat: 3892 / 810

On to step 6:
810 goes into 3892 4 times with a remainder of 652.
The next digit of our result is 4. 
Result so far: 224.0
Subtracting 3240 from 3892 leaves us with 652.
Take the next digit (0) from the dividend and append it to 652, then repeat: 6520 / 810

Step 7:
When dividing 6520 by 810, we get 8 with a remainder of 40.
The next digit of our result is 8. 
Result so far: 2248.0
Deduct 6480 from 6520 and we're left with 40.
Fetch the next digit (9) from the dividend, attach it to 40 and continue: 409 / 810

On to step 8:
When dividing 409 by 810, we get 0 with a remainder of 409.
Put 0 as the next digit of the answer. 
Result so far: 22480.0
If we take 0 away from 409, we end up with 409.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4090, and continue the process.

Moving on to step 9:
If we divide 4090 by 810, we get 5 and a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 22480.5
If we take 4050 away from 4090, we end up 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 10:
810 can be fit into 400 0 times, resulting in a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 22480.5
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 11:
If we divide 4000 by 810, we get 4 and a remainder of 760.
Put 4 as the next digit of the answer. 
Result so far: 22480.504
If we take 3240 away from 4000, we end up with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Going ahead to step 12:
The number 810 fits into 7600 9 times, leaving a remainder of 310.
The next digit of our result is 9. 
Result so far: 22480.5049
The remainder is 310 after subtracting 7290 from 7600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Going ahead to step 13:
When dividing 3100 by 810, we get 3 with a remainder of 670.
Put 3 as the next digit of the answer. 
Result so far: 22480.50493
Deduct 2430 from 3100 and we're left with 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Let's proceed to step 14:
If we divide 6700 by 810, we get 8 and a remainder of 220.
The number 8 becomes the next digit in our result. 
Result so far: 22480.504938
Subtract 6480 from 6700 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 15:
When dividing 2200 by 810, we get 2 with a remainder of 580.
Use 2 as the next digit of our solution. 
Result so far: 22480.5049382
Subtracting 1620 from 2200 leaves us with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

On to step 16:
The number 810 fits into 5800 7 times, leaving a remainder of 130.
Put 7 as the next digit of the answer. 
Result so far: 22480.50493827
If we subtract 5670 from 5800, we get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Our division results in 22480.50493827 with a remaining 1.3e-07.