21611325 ÷ 509 
Let's see how many times 509 fits into 21611325.

On to step 1:
2 divided by 509 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 509

Step 2:
When dividing 21 by 509, we get 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (6) from the dividend and append it to 21, then repeat: 216 / 509

Going ahead to step 3:
509 goes into 216 0 times with a remainder of 216.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 216, we end up with 216.
Grab the next digit (1) from the dividend, add it to 216, then carry on: 2161 / 509

Advancing to step 4:
When dividing 2161 by 509, we get 4 with a remainder of 125.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 2036 from 2161 to get 125.
Grab the next digit (1) from the dividend, add it to 125, then carry on: 1251 / 509

Moving on to step 5:
509 can be fit into 1251 2 times, resulting in a remainder of 233.
The next digit of our result is 2. 
Result so far: 42.0
Subtract 1018 from 1251 to get 233.
Take the next digit (3) from the dividend and append it to 233, then repeat: 2333 / 509

Let's proceed to step 6:
509 can be fit into 2333 4 times, resulting in a remainder of 297.
Write down 4 as next digit of the result. 
Result so far: 424.0
If we take 2036 away from 2333, we end up with 297.
Fetch the next digit (2) from the dividend, attach it to 297 and continue: 2972 / 509

Step 7:
If we divide 2972 by 509, we get 5 and a remainder of 427.
The number 5 becomes the next digit in our result. 
Result so far: 4245.0
Subtract 2545 from 2972 to get 427.
Grab the next digit (5) from the dividend, add it to 427, then carry on: 4275 / 509

On to step 8:
509 goes into 4275 8 times with a remainder of 203.
The number 8 becomes the next digit in our result. 
Result so far: 42458.0
If we subtract 4072 from 4275, we get 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

On to step 9:
When dividing 2030 by 509, we get 3 with a remainder of 503.
The next digit of our result is 3. 
Result so far: 42458.3
Deduct 1527 from 2030 and we're left with 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Moving on to step 10:
The number 509 fits into 5030 9 times, leaving a remainder of 449.
Put 9 as the next digit of the answer. 
Result so far: 42458.39
If we subtract 4581 from 5030, we get 449.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4490, and continue the process.

Step 11:
509 goes into 4490 8 times with a remainder of 418.
Put 8 as the next digit of the answer. 
Result so far: 42458.398
If we take 4072 away from 4490, we end up with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

On to step 12:
509 goes into 4180 8 times with a remainder of 108.
The next digit of our result is 8. 
Result so far: 42458.3988
Subtract 4072 from 4180 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

In conclusion, the division gives 42458.3988 with a balance of 0.00108.