We're dividing 42658524 by 398 
We're looking to find how many times 398 goes into 42658524.

Let's proceed to step 1:
398 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 398

Advancing to step 2:
398 can be fit into 42 0 times, resulting in 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.
Append the next digit (6) from the dividend to 42 and continue with: 426 / 398

Let's proceed to step 3:
398 goes into 426 1 times with a remainder of 28.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 398 from 426 to get 28.
Append the next digit (5) from the dividend to 28 and continue with: 285 / 398

Let's proceed to step 4:
285 divided by 398 is 0 with a remainder of 285.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtracting 0 from 285 leaves us with 285.
Include the next digit (8) from the dividend after 285, then repeat: 2858 / 398

Moving on to step 5:
When dividing 2858 by 398, we get 7 with a remainder of 72.
The next digit of our result is 7. 
Result so far: 107.0
Deduct 2786 from 2858 and we're left with 72.
Take the next digit (5) from the dividend and append it to 72, then repeat: 725 / 398

Let's proceed to step 6:
The number 398 fits into 725 1 times, leaving a remainder of 327.
The next digit of our result is 1. 
Result so far: 1071.0
If we subtract 398 from 725, we get 327.
Append the next digit (2) from the dividend to 327 and continue with: 3272 / 398

Going ahead to step 7:
398 can be fit into 3272 8 times, resulting in a remainder of 88.
Use 8 as the next digit of our solution. 
Result so far: 10718.0
The remainder is 88 after subtracting 3184 from 3272.
Fetch the next digit (4) from the dividend, attach it to 88 and continue: 884 / 398

Going ahead to step 8:
398 goes into 884 2 times with a remainder of 88.
Record the quotient 2 as the next digit in the result. 
Result so far: 107182.0
Deduct 796 from 884 and we're left with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 9:
398 can be fit into 880 2 times, resulting in a remainder of 84.
Put 2 as the next digit of the answer. 
Result so far: 107182.2
Subtracting 796 from 880 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 10:
If we divide 840 by 398, we get 2 and a remainder of 44.
Put 2 as the next digit of the answer. 
Result so far: 107182.22
If we take 796 away from 840, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final outcome is 107182.22, with a leftover of 0.044.