We look at the division of 84390908 by 525 
We're looking to find how many times 525 goes into 84390908.

Step 1:
525 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 525

Advancing to step 2:
525 goes into 84 0 times with a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 84 to get 84.
Bring next digit (3) of the dividend behind the 84 and repeat the process: 843 / 525

Advancing to step 3:
525 goes into 843 1 times with a remainder of 318.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 525 from 843 and we're left with 318.
Fetch the next digit (9) from the dividend, attach it to 318 and continue: 3189 / 525

Advancing to step 4:
3189 divided by 525 is 6 with a remainder of 39.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we subtract 3150 from 3189, we get 39.
Grab the next digit (0) from the dividend, add it to 39, then carry on: 390 / 525

Going ahead to step 5:
525 can be fit into 390 0 times, resulting in a remainder of 390.
Write down 0 as next digit of the result. 
Result so far: 160.0
If we subtract 0 from 390, we get 390.
Fetch the next digit (9) from the dividend, attach it to 390 and continue: 3909 / 525

On to step 6:
525 can be fit into 3909 7 times, resulting in a remainder of 234.
Put 7 as the next digit of the answer. 
Result so far: 1607.0
The remainder is 234 after subtracting 3675 from 3909.
Take the next digit (0) from the dividend and append it to 234, then repeat: 2340 / 525

On to step 7:
The number 525 fits into 2340 4 times, leaving a remainder of 240.
Put 4 as the next digit of the answer. 
Result so far: 16074.0
If we subtract 2100 from 2340, we get 240.
Grab the next digit (8) from the dividend, add it to 240, then carry on: 2408 / 525

On to step 8:
When dividing 2408 by 525, we get 4 with a remainder of 308.
Use 4 as the next digit of our solution. 
Result so far: 160744.0
Deduct 2100 from 2408 and we're left with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Let's proceed to step 9:
If we divide 3080 by 525, we get 5 and a remainder of 455.
Put 5 as the next digit of the answer. 
Result so far: 160744.5
Deduct 2625 from 3080 and we're left with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Going ahead to step 10:
When dividing 4550 by 525, we get 8 with a remainder of 350.
Use 8 as the next digit of our solution. 
Result so far: 160744.58
The remainder is 350 after subtracting 4200 from 4550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Advancing to step 11:
525 goes into 3500 6 times with a remainder of 350.
Use 6 as the next digit of our solution. 
Result so far: 160744.586
If we take 3150 away from 3500, we end up with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

On to step 12:
525 goes into 3500 6 times with a remainder of 350.
The number 6 becomes the next digit in our result. 
Result so far: 160744.5866
If we take 3150 away from 3500, we end up with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

The quotient of the division is 160744.5866, and the remainder is 0.0035.