We look at the division of 551608 by 30 
We want to figure out the number of times 551608 can be divided by 30.

On to step 1:
If we divide 5 by 30, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 30

Going ahead to step 2:
30 can be fit into 55 1 times, resulting in a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 30 from 55 leaves us with 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 30

Advancing to step 3:
When dividing 251 by 30, we get 8 with a remainder of 11.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
If we take 240 away from 251, we end up with 11.
Append the next digit (6) from the dividend to 11 and continue with: 116 / 30

Advancing to step 4:
The number 30 fits into 116 3 times, leaving a remainder of 26.
Put 3 as the next digit of the answer. 
Result so far: 183.0
Deduct 90 from 116 and we're left with 26.
Grab the next digit (0) from the dividend, add it to 26, then carry on: 260 / 30

Step 5:
When dividing 260 by 30, we get 8 with a remainder of 20.
Put 8 as the next digit of the answer. 
Result so far: 1838.0
The remainder is 20 after subtracting 240 from 260.
Take the next digit (8) from the dividend and append it to 20, then repeat: 208 / 30

Advancing to step 6:
If we divide 208 by 30, we get 6 and a remainder of 28.
The next digit of our result is 6. 
Result so far: 18386.0
If we subtract 180 from 208, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 7:
The number 30 fits into 280 9 times, leaving a remainder of 10.
The next digit of our result is 9. 
Result so far: 18386.9
Deduct 270 from 280 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 18386.93
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
If we divide 100 by 30, we get 3 and a remainder of 10.
The next digit of our result is 3. 
Result so far: 18386.933
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 18386.933 and a remainder of 0.001.