We're dividing 146609 by 15 
Let's see how many times 15 fits into 146609.

Advancing to step 1:
When dividing 1 by 15, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 15

Moving on to step 2:
15 can be fit into 14 0 times, resulting in a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Take the next digit (6) from the dividend and append it to 14, then repeat: 146 / 15

Step 3:
146 divided by 15 is 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 135 from 146 and we're left with 11.
Include the next digit (6) from the dividend after 11, then repeat: 116 / 15

Let's proceed to step 4:
When dividing 116 by 15, we get 7 with a remainder of 11.
Use 7 as the next digit of our solution. 
Result so far: 97.0
If we take 105 away from 116, we end up with 11.
Grab the next digit (0) from the dividend, add it to 11, then carry on: 110 / 15

Let's proceed to step 5:
If we divide 110 by 15, we get 7 and a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 977.0
If we take 105 away from 110, we end up with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 15

On to step 6:
59 divided by 15 is 3 with a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 9773.0
Deduct 45 from 59 and we're left 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.

On to step 7:
If we divide 140 by 15, we get 9 and a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 9773.9
The remainder is 5 after subtracting 135 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
When dividing 50 by 15, we get 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 9773.93
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.

Let's proceed to step 9:
If we divide 50 by 15, we get 3 and a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 9773.933
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.

The final outcome is 9773.933, with a leftover of 0.0005.