We look at the division of 42086 by 58 
We want to divide 42086 by 58.

On to step 1:
58 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
Subtracting 0 from 4 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 58

Let's proceed to step 2:
42 divided by 58 is 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 58

Moving on to step 3:
When dividing 420 by 58, we get 7 with a remainder of 14.
The next digit of our result is 7. 
Result so far: 7.0
Deduct 406 from 420 and we're left with 14.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 58

Moving on to step 4:
If we divide 148 by 58, we get 2 and a remainder of 32.
The next digit of our result is 2. 
Result so far: 72.0
If we take 116 away from 148, we end up with 32.
Fetch the next digit (6) from the dividend, attach it to 32 and continue: 326 / 58

On to step 5:
If we divide 326 by 58, we get 5 and a remainder of 36.
Write down 5 as next digit of the result. 
Result so far: 725.0
If we subtract 290 from 326, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 6:
If we divide 360 by 58, we get 6 and a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 725.6
If we take 348 away from 360, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
120 divided by 58 is 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 725.62
If we subtract 116 from 120, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 8:
When dividing 40 by 58, we get 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 725.62
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 9:
If we divide 400 by 58, we get 6 and a remainder of 52.
Write down 6 as next digit of the result. 
Result so far: 725.6206
The remainder is 52 after subtracting 348 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 10:
520 divided by 58 is 8 with a remainder of 56.
Use 8 as the next digit of our solution. 
Result so far: 725.62068
The remainder is 56 after subtracting 464 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 11:
When dividing 560 by 58, we get 9 with a remainder of 38.
The number 9 becomes the next digit in our result. 
Result so far: 725.620689
Subtracting 522 from 560 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 12:
If we divide 380 by 58, we get 6 and a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 725.6206896
Subtracting 348 from 380 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 13:
When dividing 320 by 58, we get 5 with a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 725.62068965
Deduct 290 from 320 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 725.62068965 with a remainder of 3e-08.