We're dividing 23421099 by 409 
Our goal is to divide 23421099 by 409.

Moving on to step 1:
The number 409 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 409

Advancing to step 2:
The number 409 fits into 23 0 times, leaving a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 23 after subtracting 0 from 23.
Fetch the next digit (4) from the dividend, attach it to 23 and continue: 234 / 409

Let's proceed to step 3:
When dividing 234 by 409, we get 0 with a remainder of 234.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 234 to get 234.
Grab the next digit (2) from the dividend, add it to 234, then carry on: 2342 / 409

Advancing to step 4:
When dividing 2342 by 409, we get 5 with a remainder of 297.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 2045 from 2342 and we're left with 297.
Take the next digit (1) from the dividend and append it to 297, then repeat: 2971 / 409

Moving on to step 5:
If we divide 2971 by 409, we get 7 and a remainder of 108.
Use 7 as the next digit of our solution. 
Result so far: 57.0
If we take 2863 away from 2971, we end up with 108.
Append the next digit (0) from the dividend to 108 and continue with: 1080 / 409

Let's proceed to step 6:
The number 409 fits into 1080 2 times, leaving a remainder of 262.
Put 2 as the next digit of the answer. 
Result so far: 572.0
Subtract 818 from 1080 to get 262.
Grab the next digit (9) from the dividend, add it to 262, then carry on: 2629 / 409

Step 7:
When dividing 2629 by 409, we get 6 with a remainder of 175.
The number 6 becomes the next digit in our result. 
Result so far: 5726.0
Subtracting 2454 from 2629 leaves us with 175.
Include the next digit (9) from the dividend after 175, then repeat: 1759 / 409

On to step 8:
409 goes into 1759 4 times with a remainder of 123.
Record the quotient 4 as the next digit in the result. 
Result so far: 57264.0
The remainder is 123 after subtracting 1636 from 1759.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Moving on to step 9:
The number 409 fits into 1230 3 times, leaving a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 57264.3
Subtracting 1227 from 1230 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 10:
409 can be fit into 30 0 times, resulting in a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 57264.3
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
409 can be fit into 300 0 times, resulting in a remainder of 300.
The number 0 becomes the next digit in our result. 
Result so far: 57264.3
Deduct 0 from 300 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Our division results in 57264.3 with a remaining 0.03.