We're dividing 42145858 by 525 
We're looking to find how many times 525 goes into 42145858.

Going ahead to step 1:
The number 525 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 525

Step 2:
The number 525 fits into 42 0 times, leaving a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Bring next digit (1) of the dividend behind the 42 and repeat the process: 421 / 525

Moving on to step 3:
The number 525 fits into 421 0 times, leaving a remainder of 421.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 421 to get 421.
Grab the next digit (4) from the dividend, add it to 421, then carry on: 4214 / 525

Step 4:
When dividing 4214 by 525, we get 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 4200 from 4214 leaves us with 14.
Take the next digit (5) from the dividend and append it to 14, then repeat: 145 / 525

On to step 5:
The number 525 fits into 145 0 times, leaving a remainder of 145.
Record the quotient 0 as the next digit in the result. 
Result so far: 80.0
If we subtract 0 from 145, we get 145.
Bring next digit (8) of the dividend behind the 145 and repeat the process: 1458 / 525

Advancing to step 6:
When dividing 1458 by 525, we get 2 with a remainder of 408.
Put 2 as the next digit of the answer. 
Result so far: 802.0
Subtracting 1050 from 1458 leaves us with 408.
Grab the next digit (5) from the dividend, add it to 408, then carry on: 4085 / 525

Let's proceed to step 7:
525 goes into 4085 7 times with a remainder of 410.
The next digit of our result is 7. 
Result so far: 8027.0
Subtracting 3675 from 4085 leaves us with 410.
Include the next digit (8) from the dividend after 410, then repeat: 4108 / 525

On to step 8:
When dividing 4108 by 525, we get 7 with a remainder of 433.
Put 7 as the next digit of the answer. 
Result so far: 80277.0
If we take 3675 away from 4108, we end up with 433.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4330, and continue the process.

On to step 9:
525 can be fit into 4330 8 times, resulting in a remainder of 130.
Write down 8 as next digit of the result. 
Result so far: 80277.8
Deduct 4200 from 4330 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 10:
525 goes into 1300 2 times with a remainder of 250.
The next digit of our result is 2. 
Result so far: 80277.82
If we take 1050 away from 1300, we end up with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 11:
525 goes into 2500 4 times with a remainder of 400.
The number 4 becomes the next digit in our result. 
Result so far: 80277.824
The remainder is 400 after subtracting 2100 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 12:
When dividing 4000 by 525, we get 7 with a remainder of 325.
Write down 7 as next digit of the result. 
Result so far: 80277.8247
If we take 3675 away from 4000, we end up with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Moving on to step 13:
If we divide 3250 by 525, we get 6 and a remainder of 100.
Use 6 as the next digit of our solution. 
Result so far: 80277.82476
The remainder is 100 after subtracting 3150 from 3250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 14:
525 can be fit into 1000 1 times, resulting in a remainder of 475.
Put 1 as the next digit of the answer. 
Result so far: 80277.824761
Subtract 525 from 1000 to get 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Going ahead to step 15:
525 goes into 4750 9 times with a remainder of 25.
Record the quotient 9 as the next digit in the result. 
Result so far: 80277.8247619
Deduct 4725 from 4750 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 16:
If we divide 250 by 525, we get 0 and a remainder of 250.
Write down 0 as next digit of the result. 
Result so far: 80277.8247619
If we take 0 away from 250, we end up with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

After the division, we end up with 80277.8247619 and a remainder of 2.5e-07.