We look at the division of 42518097 by 578 
We're looking to find how many times 578 goes into 42518097.

Going ahead to step 1:
The number 578 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
If we subtract 0 from 4, we get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 578

Let's proceed to step 2:
The number 578 fits into 42 0 times, leaving a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Grab the next digit (5) from the dividend, add it to 42, then carry on: 425 / 578

On to step 3:
578 can be fit into 425 0 times, resulting in a remainder of 425.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 425 and we're left with 425.
Take the next digit (1) from the dividend and append it to 425, then repeat: 4251 / 578

Advancing to step 4:
The number 578 fits into 4251 7 times, leaving a remainder of 205.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 4046 from 4251 to get 205.
Bring next digit (8) of the dividend behind the 205 and repeat the process: 2058 / 578

Step 5:
When dividing 2058 by 578, we get 3 with a remainder of 324.
Write down 3 as next digit of the result. 
Result so far: 73.0
The remainder is 324 after subtracting 1734 from 2058.
Bring next digit (0) of the dividend behind the 324 and repeat the process: 3240 / 578

Going ahead to step 6:
3240 divided by 578 is 5 with a remainder of 350.
Put 5 as the next digit of the answer. 
Result so far: 735.0
If we subtract 2890 from 3240, we get 350.
Include the next digit (9) from the dividend after 350, then repeat: 3509 / 578

Going ahead to step 7:
578 goes into 3509 6 times with a remainder of 41.
Put 6 as the next digit of the answer. 
Result so far: 7356.0
Subtracting 3468 from 3509 leaves us with 41.
Bring next digit (7) of the dividend behind the 41 and repeat the process: 417 / 578

Going ahead to step 8:
When dividing 417 by 578, we get 0 with a remainder of 417.
Put 0 as the next digit of the answer. 
Result so far: 73560.0
Subtract 0 from 417 to get 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

Step 9:
The number 578 fits into 4170 7 times, leaving a remainder of 124.
The next digit of our result is 7. 
Result so far: 73560.7
Subtract 4046 from 4170 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 10:
578 goes into 1240 2 times with a remainder of 84.
The number 2 becomes the next digit in our result. 
Result so far: 73560.72
The remainder is 84 after subtracting 1156 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 11:
When dividing 840 by 578, we get 1 with a remainder of 262.
Use 1 as the next digit of our solution. 
Result so far: 73560.721
If we subtract 578 from 840, we get 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Step 12:
If we divide 2620 by 578, we get 4 and a remainder of 308.
Write down 4 as next digit of the result. 
Result so far: 73560.7214
Subtracting 2312 from 2620 leaves us 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.

Advancing to step 13:
578 can be fit into 3080 5 times, resulting in a remainder of 190.
Use 5 as the next digit of our solution. 
Result so far: 73560.72145
Deduct 2890 from 3080 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 14:
578 goes into 1900 3 times with a remainder of 166.
The next digit of our result is 3. 
Result so far: 73560.721453
If we subtract 1734 from 1900, we get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Let's proceed to step 15:
The number 578 fits into 1660 2 times, leaving a remainder of 504.
The next digit of our result is 2. 
Result so far: 73560.7214532
If we subtract 1156 from 1660, we get 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Advancing to step 16:
When dividing 5040 by 578, we get 8 with a remainder of 416.
Write down 8 as next digit of the result. 
Result so far: 73560.72145328
Subtract 4624 from 5040 to get 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

The quotient of the division is 73560.72145328, and the remainder is 4.16e-07.