18181718 divided by 390 
We want to figure out the number of times 18181718 can be divided by 390.

Moving on to step 1:
1 divided by 390 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 390

Going ahead to step 2:
18 divided by 390 is 0 with a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 390

Going ahead to step 3:
When dividing 181 by 390, we get 0 with a remainder of 181.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 181 leaves us with 181.
Bring next digit (8) of the dividend behind the 181 and repeat the process: 1818 / 390

On to step 4:
When dividing 1818 by 390, we get 4 with a remainder of 258.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Subtract 1560 from 1818 to get 258.
Fetch the next digit (1) from the dividend, attach it to 258 and continue: 2581 / 390

Step 5:
390 goes into 2581 6 times with a remainder of 241.
The next digit of our result is 6. 
Result so far: 46.0
Subtract 2340 from 2581 to get 241.
Fetch the next digit (7) from the dividend, attach it to 241 and continue: 2417 / 390

Going ahead to step 6:
390 can be fit into 2417 6 times, resulting in a remainder of 77.
Use 6 as the next digit of our solution. 
Result so far: 466.0
If we subtract 2340 from 2417, we get 77.
Fetch the next digit (1) from the dividend, attach it to 77 and continue: 771 / 390

Moving on to step 7:
The number 390 fits into 771 1 times, leaving a remainder of 381.
Record the quotient 1 as the next digit in the result. 
Result so far: 4661.0
If we subtract 390 from 771, we get 381.
Append the next digit (8) from the dividend to 381 and continue with: 3818 / 390

On to step 8:
3818 divided by 390 is 9 with a remainder of 308.
The next digit of our result is 9. 
Result so far: 46619.0
The remainder is 308 after subtracting 3510 from 3818.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Moving on to step 9:
390 goes into 3080 7 times with a remainder of 350.
The number 7 becomes the next digit in our result. 
Result so far: 46619.7
If we subtract 2730 from 3080, we get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Going ahead to step 10:
When dividing 3500 by 390, we get 8 with a remainder of 380.
Write down 8 as next digit of the result. 
Result so far: 46619.78
If we subtract 3120 from 3500, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 11:
The number 390 fits into 3800 9 times, leaving a remainder of 290.
Write down 9 as next digit of the result. 
Result so far: 46619.789
If we subtract 3510 from 3800, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Advancing to step 12:
When dividing 2900 by 390, we get 7 with a remainder of 170.
Use 7 as the next digit of our solution. 
Result so far: 46619.7897
Subtracting 2730 from 2900 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Let's proceed to step 13:
When dividing 1700 by 390, we get 4 with a remainder of 140.
The number 4 becomes the next digit in our result. 
Result so far: 46619.78974
If we take 1560 away from 1700, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 14:
When dividing 1400 by 390, we get 3 with a remainder of 230.
The next digit of our result is 3. 
Result so far: 46619.789743
Subtract 1170 from 1400 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

On to step 15:
390 goes into 2300 5 times with a remainder of 350.
Put 5 as the next digit of the answer. 
Result so far: 46619.7897435
Deduct 1950 from 2300 and we're left with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Advancing to step 16:
When dividing 3500 by 390, we get 8 with a remainder of 380.
Put 8 as the next digit of the answer. 
Result so far: 46619.78974358
Subtract 3120 from 3500 to get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

The quotient of the division is 46619.78974358, and the remainder is 3.8e-07.