Let's divide 671580 by 1
We want to figure out the number of times 671580 can be divided by 1.

Step 1:
If we divide 6 by 1, we get 6 and a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 6 from 6, we get 0.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 1

Advancing to step 2:
1 goes into 7 7 times with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 67.0
Deduct 7 from 7 and we're left with 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 1

On to step 3:
1 divided by 1 is 1 with a remainder of 0.
The next digit of our result is 1. 
Result so far: 671.0
Subtract 1 from 1 to get 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 1

Let's proceed to step 4:
1 goes into 5 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 6715.0
If we subtract 5 from 5, we get 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 1

On to step 5:
1 can be fit into 8 8 times, resulting in a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 67158.0
The remainder is 0 after subtracting 8 from 8.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 1

On to step 6:
0 divided by 1 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 671580.0
If we take 0 away from 0, we end up 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.

Moving on to step 7:
If we divide 0 by 1, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 671580.0
If we take 0 away from 0, we end up 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.

Let's proceed to step 8:
0 divided by 1 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 671580.0
Subtracting 0 from 0 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.

The final result is 671580.0 with a remainder of 0.0.