577990 ÷ 30 
We want to figure out the number of times 577990 can be divided by 30.

Let's proceed to step 1:
30 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 30

Going ahead to step 2:
30 can be fit into 57 1 times, resulting in a remainder of 27.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 30 away from 57, we end up with 27.
Include the next digit (7) from the dividend after 27, then repeat: 277 / 30

Let's proceed to step 3:
If we divide 277 by 30, we get 9 and a remainder of 7.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
If we take 270 away from 277, we end up with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 30

Let's proceed to step 4:
If we divide 79 by 30, we get 2 and a remainder of 19.
Put 2 as the next digit of the answer. 
Result so far: 192.0
If we take 60 away from 79, we end up with 19.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 30

Moving on to step 5:
When dividing 199 by 30, we get 6 with a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 1926.0
Subtract 180 from 199 to get 19.
Bring next digit (0) of the dividend behind the 19 and repeat the process: 190 / 30

Let's proceed to step 6:
30 can be fit into 190 6 times, resulting in a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 19266.0
Subtract 180 from 190 to get 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 7:
If we divide 100 by 30, we get 3 and a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 19266.3
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
If we divide 100 by 30, we get 3 and a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 19266.33
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 19266.33 and a remainder of 0.01.