We're dividing 30590 by 86 
We're looking to find how many times 86 goes into 30590.

Let's proceed to step 1:
The number 86 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 86

Step 2:
If we divide 30 by 86, we get 0 and a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Bring next digit (5) of the dividend behind the 30 and repeat the process: 305 / 86

Step 3:
The number 86 fits into 305 3 times, leaving a remainder of 47.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 258 away from 305, we end up with 47.
Include the next digit (9) from the dividend after 47, then repeat: 479 / 86

Advancing to step 4:
When dividing 479 by 86, we get 5 with a remainder of 49.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
The remainder is 49 after subtracting 430 from 479.
Take the next digit (0) from the dividend and append it to 49, then repeat: 490 / 86

Let's proceed to step 5:
490 divided by 86 is 5 with a remainder of 60.
The next digit of our result is 5. 
Result so far: 355.0
Subtracting 430 from 490 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 6:
86 can be fit into 600 6 times, resulting in a remainder of 84.
The number 6 becomes the next digit in our result. 
Result so far: 355.6
Subtracting 516 from 600 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.

Advancing to step 7:
When dividing 840 by 86, we get 9 with a remainder of 66.
Put 9 as the next digit of the answer. 
Result so far: 355.69
Deduct 774 from 840 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 8:
86 can be fit into 660 7 times, resulting in a remainder of 58.
The next digit of our result is 7. 
Result so far: 355.697
The remainder is 58 after subtracting 602 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 9:
If we divide 580 by 86, we get 6 and a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 355.6976
If we take 516 away from 580, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 10:
640 divided by 86 is 7 with a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 355.69767
If we take 602 away from 640, we end up 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.

Going ahead to step 11:
86 goes into 380 4 times with a remainder of 36.
The next digit of our result is 4. 
Result so far: 355.697674
Subtracting 344 from 380 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 12:
When dividing 360 by 86, we get 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 355.6976744
Deduct 344 from 360 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 355.6976744, with a leftover of 1.6e-07.