We're dividing 525069 by 90 
We want to figure out the number of times 525069 can be divided by 90.

Let's proceed to step 1:
If we divide 5 by 90, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 90

Step 2:
If we divide 52 by 90, we get 0 and a remainder of 52.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 52, we get 52.
Append the next digit (5) from the dividend to 52 and continue with: 525 / 90

On to step 3:
If we divide 525 by 90, we get 5 and a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 450 from 525 to get 75.
Fetch the next digit (0) from the dividend, attach it to 75 and continue: 750 / 90

Moving on to step 4:
750 divided by 90 is 8 with a remainder of 30.
The number 8 becomes the next digit in our result. 
Result so far: 58.0
Subtracting 720 from 750 leaves us with 30.
Include the next digit (6) from the dividend after 30, then repeat: 306 / 90

Step 5:
The number 90 fits into 306 3 times, leaving a remainder of 36.
The number 3 becomes the next digit in our result. 
Result so far: 583.0
Subtract 270 from 306 to get 36.
Include the next digit (9) from the dividend after 36, then repeat: 369 / 90

Advancing to step 6:
90 goes into 369 4 times with a remainder of 9.
Write down 4 as next digit of the result. 
Result so far: 5834.0
If we subtract 360 from 369, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
When dividing 90 by 90, we get 1 with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 5834.1
Subtracting 90 from 90 leaves us 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 8:
90 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 5834.1
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 9:
If we divide 0 by 90, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 5834.1
Deduct 0 from 0 and we're left 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.

The final outcome is 5834.1, with a leftover of 0.0.