Let's divide 78215452 by 525
We want to figure out the number of times 78215452 can be divided by 525.

Moving on to step 1:
When dividing 7 by 525, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 525

Moving on to step 2:
The number 525 fits into 78 0 times, leaving a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Append the next digit (2) from the dividend to 78 and continue with: 782 / 525

Let's proceed to step 3:
The number 525 fits into 782 1 times, leaving a remainder of 257.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 525 away from 782, we end up with 257.
Append the next digit (1) from the dividend to 257 and continue with: 2571 / 525

Advancing to step 4:
525 goes into 2571 4 times with a remainder of 471.
The next digit of our result is 4. 
Result so far: 14.0
Subtracting 2100 from 2571 leaves us with 471.
Append the next digit (5) from the dividend to 471 and continue with: 4715 / 525

Step 5:
The number 525 fits into 4715 8 times, leaving a remainder of 515.
Use 8 as the next digit of our solution. 
Result so far: 148.0
If we take 4200 away from 4715, we end up with 515.
Include the next digit (4) from the dividend after 515, then repeat: 5154 / 525

On to step 6:
525 goes into 5154 9 times with a remainder of 429.
The next digit of our result is 9. 
Result so far: 1489.0
The remainder is 429 after subtracting 4725 from 5154.
Bring next digit (5) of the dividend behind the 429 and repeat the process: 4295 / 525

Advancing to step 7:
The number 525 fits into 4295 8 times, leaving a remainder of 95.
Put 8 as the next digit of the answer. 
Result so far: 14898.0
Subtracting 4200 from 4295 leaves us with 95.
Fetch the next digit (2) from the dividend, attach it to 95 and continue: 952 / 525

Let's proceed to step 8:
When dividing 952 by 525, we get 1 with a remainder of 427.
The next digit of our result is 1. 
Result so far: 148981.0
Subtracting 525 from 952 leaves us with 427.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4270, and continue the process.

Moving on to step 9:
If we divide 4270 by 525, we get 8 and a remainder of 70.
Write down 8 as next digit of the result. 
Result so far: 148981.8
If we subtract 4200 from 4270, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 10:
The number 525 fits into 700 1 times, leaving a remainder of 175.
Record the quotient 1 as the next digit in the result. 
Result so far: 148981.81
The remainder is 175 after subtracting 525 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Going ahead to step 11:
When dividing 1750 by 525, we get 3 with a remainder of 175.
Use 3 as the next digit of our solution. 
Result so far: 148981.813
Subtracting 1575 from 1750 leaves us with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Let's proceed to step 12:
525 goes into 1750 3 times with a remainder of 175.
The number 3 becomes the next digit in our result. 
Result so far: 148981.8133
If we subtract 1575 from 1750, we get 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

The quotient of the division is 148981.8133, and the remainder is 0.00175.