We look at the division of 12008561 by 58 
We're looking to find how many times 58 goes into 12008561.

On to step 1:
When dividing 1 by 58, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 58

Advancing to step 2:
If we divide 12 by 58, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 58

Moving on to step 3:
58 can be fit into 120 2 times, resulting in a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 116 from 120 leaves us with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 58

On to step 4:
40 divided by 58 is 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 20.0
The remainder is 40 after subtracting 0 from 40.
Take the next digit (8) from the dividend and append it to 40, then repeat: 408 / 58

Moving on to step 5:
The number 58 fits into 408 7 times, leaving a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 207.0
If we subtract 406 from 408, we get 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 58

Step 6:
The number 58 fits into 25 0 times, leaving a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 2070.0
The remainder is 25 after subtracting 0 from 25.
Include the next digit (6) from the dividend after 25, then repeat: 256 / 58

Going ahead to step 7:
If we divide 256 by 58, we get 4 and a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 20704.0
The remainder is 24 after subtracting 232 from 256.
Include the next digit (1) from the dividend after 24, then repeat: 241 / 58

Let's proceed to step 8:
58 goes into 241 4 times with a remainder of 9.
The next digit of our result is 4. 
Result so far: 207044.0
If we take 232 away from 241, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 9:
When dividing 90 by 58, we get 1 with a remainder of 32.
The number 1 becomes the next digit in our result. 
Result so far: 207044.1
If we subtract 58 from 90, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 10:
320 divided by 58 is 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 207044.15
The remainder is 30 after subtracting 290 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
58 can be fit into 300 5 times, resulting in a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 207044.155
Deduct 290 from 300 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 207044.155 and a remainder of 0.001.