We're dividing 42457449 by 524 
We want to figure out the number of times 42457449 can be divided by 524.

Advancing to step 1:
When dividing 4 by 524, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 524

Let's proceed to step 2:
42 divided by 524 is 0 with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Grab the next digit (4) from the dividend, add it to 42, then carry on: 424 / 524

Moving on to step 3:
The number 524 fits into 424 0 times, leaving a remainder of 424.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 424 to get 424.
Bring next digit (5) of the dividend behind the 424 and repeat the process: 4245 / 524

Advancing to step 4:
If we divide 4245 by 524, we get 8 and a remainder of 53.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 4192 from 4245 and we're left with 53.
Fetch the next digit (7) from the dividend, attach it to 53 and continue: 537 / 524

Step 5:
When dividing 537 by 524, we get 1 with a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 81.0
Subtracting 524 from 537 leaves us with 13.
Bring next digit (4) of the dividend behind the 13 and repeat the process: 134 / 524

Let's proceed to step 6:
524 goes into 134 0 times with a remainder of 134.
The number 0 becomes the next digit in our result. 
Result so far: 810.0
Subtract 0 from 134 to get 134.
Fetch the next digit (4) from the dividend, attach it to 134 and continue: 1344 / 524

Advancing to step 7:
524 goes into 1344 2 times with a remainder of 296.
Record the quotient 2 as the next digit in the result. 
Result so far: 8102.0
If we subtract 1048 from 1344, we get 296.
Fetch the next digit (9) from the dividend, attach it to 296 and continue: 2969 / 524

Let's proceed to step 8:
2969 divided by 524 is 5 with a remainder of 349.
Use 5 as the next digit of our solution. 
Result so far: 81025.0
Subtract 2620 from 2969 to get 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Step 9:
524 goes into 3490 6 times with a remainder of 346.
The next digit of our result is 6. 
Result so far: 81025.6
Deduct 3144 from 3490 and we're left with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Moving on to step 10:
3460 divided by 524 is 6 with a remainder of 316.
Record the quotient 6 as the next digit in the result. 
Result so far: 81025.66
If we take 3144 away from 3460, we end up with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

The quotient of the division is 81025.66, and the remainder is 0.316.