Let's divide 554621 by 15
We're looking to find how many times 15 goes into 554621.

Moving on to step 1:
If we divide 5 by 15, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 15

Let's proceed to step 2:
When dividing 55 by 15, we get 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 45 from 55, we get 10.
Append the next digit (4) from the dividend to 10 and continue with: 104 / 15

Moving on to step 3:
The number 15 fits into 104 6 times, leaving a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 36.0
Deduct 90 from 104 and we're left with 14.
Append the next digit (6) from the dividend to 14 and continue with: 146 / 15

Step 4:
15 can be fit into 146 9 times, resulting in a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 369.0
Deduct 135 from 146 and we're left with 11.
Fetch the next digit (2) from the dividend, attach it to 11 and continue: 112 / 15

Let's proceed to step 5:
112 divided by 15 is 7 with a remainder of 7.
The next digit of our result is 7. 
Result so far: 3697.0
If we take 105 away from 112, we end up with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 15

Advancing to step 6:
15 can be fit into 71 4 times, resulting in a remainder of 11.
The number 4 becomes the next digit in our result. 
Result so far: 36974.0
Deduct 60 from 71 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
15 goes into 110 7 times with a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 36974.7
Subtracting 105 from 110 leaves us 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.

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: 36974.73
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.

Step 9:
When dividing 50 by 15, we get 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 36974.733
Deduct 45 from 50 and we're left 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 36974.733 and a remainder of 0.0005.