987021 divided by 15 
Our goal is to divide 987021 by 15.

Let's proceed to step 1:
15 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (8) from the dividend and append it to 9, then repeat: 98 / 15

Advancing to step 2:
98 divided by 15 is 6 with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Deduct 90 from 98 and we're left with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 15

Advancing to step 3:
The number 15 fits into 87 5 times, leaving a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 65.0
Deduct 75 from 87 and we're left with 12.
Grab the next digit (0) from the dividend, add it to 12, then carry on: 120 / 15

On to step 4:
120 divided by 15 is 8 with a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 658.0
If we take 120 away from 120, we end up with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 15

Moving on to step 5:
15 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 6580.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 15

Let's proceed to step 6:
When dividing 21 by 15, we get 1 with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 65801.0
Subtracting 15 from 21 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
15 can be fit into 60 4 times, resulting in a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 65801.4
Subtract 60 from 60 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.

On to step 8:
When dividing 0 by 15, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 65801.4
If we take 0 away from 0, 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.

Step 9:
The number 15 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 65801.4
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.

After the division, we end up with 65801.4 and a remainder of 0.0.