We look at the division of 18580 by 4 
We want to divide 18580 by 4.

Advancing to step 1:
4 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 4

Let's proceed to step 2:
4 can be fit into 18 4 times, resulting in a remainder of 2.
The next digit of our result is 4. 
Result so far: 4.0
If we take 16 away from 18, we end up with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 4

Going ahead to step 3:
The number 4 fits into 25 6 times, leaving a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 46.0
If we subtract 24 from 25, we get 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 4

Advancing to step 4:
4 goes into 18 4 times with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 464.0
If we subtract 16 from 18, we get 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 4

Advancing to step 5:
When dividing 20 by 4, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 4645.0
Subtracting 20 from 20 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 6:
4 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 4645.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
The number 4 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4645.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 4645.0 with a balance of 0.0.