We're dividing 998577 by 15 
Our goal is to divide 998577 by 15.

Moving on to step 1:
When dividing 9 by 15, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 15

On to step 2:
99 divided by 15 is 6 with a remainder of 9.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 90 away from 99, we end up with 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 15

Going ahead to step 3:
15 can be fit into 98 6 times, resulting in a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 66.0
If we take 90 away from 98, we end up with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 15

Advancing to step 4:
85 divided by 15 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 665.0
The remainder is 10 after subtracting 75 from 85.
Grab the next digit (7) from the dividend, add it to 10, then carry on: 107 / 15

Let's proceed to step 5:
107 divided by 15 is 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 6657.0
Subtract 105 from 107 to get 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 15

Moving on to step 6:
The number 15 fits into 27 1 times, leaving a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 66571.0
Subtracting 15 from 27 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
15 goes into 120 8 times with a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 66571.8
If we take 120 away from 120, we end up with 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 8:
15 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 66571.8
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
15 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: 66571.8
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 66571.8, with a leftover of 0.0.