We divide 16410578 by 20
We're looking to find how many times 20 goes into 16410578.

Moving on to step 1:
20 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 20

Step 2:
The number 20 fits into 16 0 times, leaving a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Include the next digit (4) from the dividend after 16, then repeat: 164 / 20

Let's proceed to step 3:
When dividing 164 by 20, we get 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 160 from 164 leaves us with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 20

Advancing to step 4:
20 goes into 41 2 times with a remainder of 1.
The next digit of our result is 2. 
Result so far: 82.0
The remainder is 1 after subtracting 40 from 41.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 20

Moving on to step 5:
The number 20 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 820.0
Deduct 0 from 10 and we're left with 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 20

Moving on to step 6:
20 can be fit into 105 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 8205.0
Subtract 100 from 105 to get 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 20

On to step 7:
When dividing 57 by 20, we get 2 with a remainder of 17.
Record the quotient 2 as the next digit in the result. 
Result so far: 82052.0
The remainder is 17 after subtracting 40 from 57.
Bring next digit (8) of the dividend behind the 17 and repeat the process: 178 / 20

Going ahead to step 8:
20 goes into 178 8 times with a remainder of 18.
The next digit of our result is 8. 
Result so far: 820528.0
If we take 160 away from 178, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 9:
20 goes into 180 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 820528.9
The remainder is 0 after subtracting 180 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 820528.9
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
When dividing 0 by 20, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 820528.9
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 820528.9 and a remainder of 0.0.