We look at the division of 401609 by 15 
We want to figure out the number of times 401609 can be divided by 15.

Moving on to step 1:
15 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 15

Step 2:
If we divide 40 by 15, we get 2 and a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 30 from 40 and we're left with 10.
Fetch the next digit (1) from the dividend, attach it to 10 and continue: 101 / 15

On to step 3:
When dividing 101 by 15, we get 6 with a remainder of 11.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
Subtracting 90 from 101 leaves us with 11.
Fetch the next digit (6) from the dividend, attach it to 11 and continue: 116 / 15

Moving on to step 4:
15 goes into 116 7 times with a remainder of 11.
The next digit of our result is 7. 
Result so far: 267.0
If we take 105 away from 116, we end up with 11.
Take the next digit (0) from the dividend and append it to 11, then repeat: 110 / 15

Let's proceed to step 5:
15 goes into 110 7 times with a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 2677.0
If we take 105 away from 110, we end up with 5.
Bring next digit (9) of the dividend behind the 5 and repeat the process: 59 / 15

Advancing to step 6:
If we divide 59 by 15, we get 3 and a remainder of 14.
The next digit of our result is 3. 
Result so far: 26773.0
If we take 45 away from 59, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
15 goes into 140 9 times with a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 26773.9
If we subtract 135 from 140, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
15 can be fit into 50 3 times, resulting in a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 26773.93
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
50 divided by 15 is 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 26773.933
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 26773.933 and a remainder of 0.0005.