We look at the division of 551604 by 3 
We want to divide 551604 by 3.

Going ahead to step 1:
3 goes into 5 1 times with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
If we take 3 away from 5, we end up with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 3

Going ahead to step 2:
25 divided by 3 is 8 with a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 18.0
Subtract 24 from 25 to get 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 3

Advancing to step 3:
3 goes into 11 3 times with a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 183.0
Deduct 9 from 11 and we're left with 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 3

Moving on to step 4:
The number 3 fits into 26 8 times, leaving a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 1838.0
The remainder is 2 after subtracting 24 from 26.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 3

Step 5:
The number 3 fits into 20 6 times, leaving a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 18386.0
The remainder is 2 after subtracting 18 from 20.
Fetch the next digit (4) from the dividend, attach it to 2 and continue: 24 / 3

Let's proceed to step 6:
The number 3 fits into 24 8 times, leaving a remainder of 0.
The next digit of our result is 8. 
Result so far: 183868.0
Subtract 24 from 24 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.

Moving on to step 7:
3 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 183868.0
The remainder is 0 after subtracting 0 from 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:
3 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 183868.0
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.

Our division results in 183868.0 with a remaining 0.0.