Let's divide 12208585 by 345
We're looking to find how many times 345 goes into 12208585.

Going ahead to step 1:
The number 345 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the 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 / 345

Going ahead to step 2:
When dividing 12 by 345, we get 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 345

Going ahead to step 3:
345 goes into 122 0 times with a remainder of 122.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 122 and we're left with 122.
Grab the next digit (0) from the dividend, add it to 122, then carry on: 1220 / 345

Moving on to step 4:
1220 divided by 345 is 3 with a remainder of 185.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 1035 from 1220 to get 185.
Fetch the next digit (8) from the dividend, attach it to 185 and continue: 1858 / 345

Advancing to step 5:
If we divide 1858 by 345, we get 5 and a remainder of 133.
Use 5 as the next digit of our solution. 
Result so far: 35.0
Deduct 1725 from 1858 and we're left with 133.
Fetch the next digit (5) from the dividend, attach it to 133 and continue: 1335 / 345

Advancing to step 6:
1335 divided by 345 is 3 with a remainder of 300.
Write down 3 as next digit of the result. 
Result so far: 353.0
Deduct 1035 from 1335 and we're left with 300.
Bring next digit (8) of the dividend behind the 300 and repeat the process: 3008 / 345

Let's proceed to step 7:
The number 345 fits into 3008 8 times, leaving a remainder of 248.
Record the quotient 8 as the next digit in the result. 
Result so far: 3538.0
If we take 2760 away from 3008, we end up with 248.
Fetch the next digit (5) from the dividend, attach it to 248 and continue: 2485 / 345

Going ahead to step 8:
If we divide 2485 by 345, we get 7 and a remainder of 70.
The next digit of our result is 7. 
Result so far: 35387.0
If we subtract 2415 from 2485, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 9:
If we divide 700 by 345, we get 2 and a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 35387.2
Deduct 690 from 700 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.

Step 10:
345 goes into 100 0 times with a remainder of 100.
The next digit of our result is 0. 
Result so far: 35387.2
If we take 0 away from 100, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 11:
1000 divided by 345 is 2 with a remainder of 310.
Record the quotient 2 as the next digit in the result. 
Result so far: 35387.202
Subtracting 690 from 1000 leaves us with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Let's proceed to step 12:
The number 345 fits into 3100 8 times, leaving a remainder of 340.
Use 8 as the next digit of our solution. 
Result so far: 35387.2028
Subtract 2760 from 3100 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 13:
When dividing 3400 by 345, we get 9 with a remainder of 295.
Use 9 as the next digit of our solution. 
Result so far: 35387.20289
Subtracting 3105 from 3400 leaves us with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Moving on to step 14:
345 goes into 2950 8 times with a remainder of 190.
The next digit of our result is 8. 
Result so far: 35387.202898
Subtracting 2760 from 2950 leaves us with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Moving on to step 15:
1900 divided by 345 is 5 with a remainder of 175.
The number 5 becomes the next digit in our result. 
Result so far: 35387.2028985
If we take 1725 away from 1900, we end up with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Moving on to step 16:
1750 divided by 345 is 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 35387.20289855
Subtract 1725 from 1750 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 35387.20289855, with a leftover of 2.5e-08.