525990 ÷ 30 
We want to figure out the number of times 525990 can be divided by 30.

Advancing to step 1:
If we divide 5 by 30, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 30

Advancing to step 2:
30 can be fit into 52 1 times, resulting in a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 30 from 52 to get 22.
Fetch the next digit (5) from the dividend, attach it to 22 and continue: 225 / 30

Step 3:
225 divided by 30 is 7 with a remainder of 15.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Deduct 210 from 225 and we're left with 15.
Grab the next digit (9) from the dividend, add it to 15, then carry on: 159 / 30

Step 4:
30 goes into 159 5 times with a remainder of 9.
Put 5 as the next digit of the answer. 
Result so far: 175.0
If we take 150 away from 159, we end up with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 30

Advancing to step 5:
30 goes into 99 3 times with a remainder of 9.
Record the quotient 3 as the next digit in the result. 
Result so far: 1753.0
The remainder is 9 after subtracting 90 from 99.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 30

Step 6:
90 divided by 30 is 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 17533.0
If we take 90 away from 90, 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.

Going ahead to step 7:
30 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 17533.0
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.

Moving on to step 8:
When dividing 0 by 30, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 17533.0
Subtract 0 from 0 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.

The quotient of the division is 17533.0, and the remainder is 0.0.