18270649 ÷ 345 
We want to figure out the number of times 18270649 can be divided by 345.

On to step 1:
When dividing 1 by 345, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 345

Moving on to step 2:
18 divided by 345 is 0 with a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Include the next digit (2) from the dividend after 18, then repeat: 182 / 345

Going ahead to step 3:
When dividing 182 by 345, we get 0 with a remainder of 182.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 182 to get 182.
Take the next digit (7) from the dividend and append it to 182, then repeat: 1827 / 345

Moving on to step 4:
If we divide 1827 by 345, we get 5 and a remainder of 102.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 1725 from 1827 to get 102.
Include the next digit (0) from the dividend after 102, then repeat: 1020 / 345

On to step 5:
345 can be fit into 1020 2 times, resulting in a remainder of 330.
Put 2 as the next digit of the answer. 
Result so far: 52.0
Subtracting 690 from 1020 leaves us with 330.
Append the next digit (6) from the dividend to 330 and continue with: 3306 / 345

Let's proceed to step 6:
When dividing 3306 by 345, we get 9 with a remainder of 201.
Use 9 as the next digit of our solution. 
Result so far: 529.0
Subtracting 3105 from 3306 leaves us with 201.
Fetch the next digit (4) from the dividend, attach it to 201 and continue: 2014 / 345

Advancing to step 7:
345 goes into 2014 5 times with a remainder of 289.
Record the quotient 5 as the next digit in the result. 
Result so far: 5295.0
If we subtract 1725 from 2014, we get 289.
Include the next digit (9) from the dividend after 289, then repeat: 2899 / 345

Advancing to step 8:
345 can be fit into 2899 8 times, resulting in a remainder of 139.
The number 8 becomes the next digit in our result. 
Result so far: 52958.0
Deduct 2760 from 2899 and we're left with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Let's proceed to step 9:
345 can be fit into 1390 4 times, resulting in a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 52958.4
If we take 1380 away from 1390, we end up 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.

Let's proceed to step 10:
345 can be fit into 100 0 times, resulting in a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 52958.4
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Advancing to step 11:
The number 345 fits into 1000 2 times, leaving a remainder of 310.
The next digit of our result is 2. 
Result so far: 52958.402
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.
Write down 8 as next digit of the result. 
Result so far: 52958.4028
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.

Moving on to step 13:
If we divide 3400 by 345, we get 9 and a remainder of 295.
The next digit of our result is 9. 
Result so far: 52958.40289
Subtract 3105 from 3400 to get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Advancing to step 14:
345 can be fit into 2950 8 times, resulting in a remainder of 190.
The next digit of our result is 8. 
Result so far: 52958.402898
Subtract 2760 from 2950 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

On to step 15:
1900 divided by 345 is 5 with a remainder of 175.
Put 5 as the next digit of the answer. 
Result so far: 52958.4028985
Deduct 1725 from 1900 and we're left 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.

Step 16:
When dividing 1750 by 345, we get 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 52958.40289855
Subtracting 1725 from 1750 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

After the division, we end up with 52958.40289855 and a remainder of 2.5e-08.