12918909 divided by 943 
We want to figure out the number of times 12918909 can be divided by 943.

Step 1:
The number 943 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 943

Step 2:
943 goes into 12 0 times with a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 943

Let's proceed to step 3:
129 divided by 943 is 0 with a remainder of 129.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 129 after subtracting 0 from 129.
Append the next digit (1) from the dividend to 129 and continue with: 1291 / 943

Going ahead to step 4:
If we divide 1291 by 943, we get 1 and a remainder of 348.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 943 from 1291, we get 348.
Include the next digit (8) from the dividend after 348, then repeat: 3488 / 943

Moving on to step 5:
3488 divided by 943 is 3 with a remainder of 659.
The next digit of our result is 3. 
Result so far: 13.0
Subtracting 2829 from 3488 leaves us with 659.
Fetch the next digit (9) from the dividend, attach it to 659 and continue: 6599 / 943

Step 6:
943 can be fit into 6599 6 times, resulting in a remainder of 941.
Record the quotient 6 as the next digit in the result. 
Result so far: 136.0
Deduct 5658 from 6599 and we're left with 941.
Append the next digit (0) from the dividend to 941 and continue with: 9410 / 943

Moving on to step 7:
943 goes into 9410 9 times with a remainder of 923.
Write down 9 as next digit of the result. 
Result so far: 1369.0
Subtracting 8487 from 9410 leaves us with 923.
Fetch the next digit (9) from the dividend, attach it to 923 and continue: 9239 / 943

Moving on to step 8:
943 can be fit into 9239 9 times, resulting in a remainder of 752.
The number 9 becomes the next digit in our result. 
Result so far: 13699.0
Deduct 8487 from 9239 and we're left with 752.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7520, and continue the process.

Advancing to step 9:
The number 943 fits into 7520 7 times, leaving a remainder of 919.
Record the quotient 7 as the next digit in the result. 
Result so far: 13699.7
Deduct 6601 from 7520 and we're left with 919.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9190, and continue the process.

Advancing to step 10:
When dividing 9190 by 943, we get 9 with a remainder of 703.
Write down 9 as next digit of the result. 
Result so far: 13699.79
Subtract 8487 from 9190 to get 703.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7030, and continue the process.

Let's proceed to step 11:
The number 943 fits into 7030 7 times, leaving a remainder of 429.
Record the quotient 7 as the next digit in the result. 
Result so far: 13699.797
If we take 6601 away from 7030, we end up with 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Moving on to step 12:
943 goes into 4290 4 times with a remainder of 518.
Record the quotient 4 as the next digit in the result. 
Result so far: 13699.7974
Subtracting 3772 from 4290 leaves us with 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Step 13:
943 can be fit into 5180 5 times, resulting in a remainder of 465.
Write down 5 as next digit of the result. 
Result so far: 13699.79745
If we subtract 4715 from 5180, we get 465.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

Moving on to step 14:
When dividing 4650 by 943, we get 4 with a remainder of 878.
The number 4 becomes the next digit in our result. 
Result so far: 13699.797454
If we take 3772 away from 4650, we end up with 878.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8780, and continue the process.

Advancing to step 15:
The number 943 fits into 8780 9 times, leaving a remainder of 293.
The next digit of our result is 9. 
Result so far: 13699.7974549
If we subtract 8487 from 8780, we get 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Advancing to step 16:
2930 divided by 943 is 3 with a remainder of 101.
Record the quotient 3 as the next digit in the result. 
Result so far: 13699.79745493
The remainder is 101 after subtracting 2829 from 2930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

The final outcome is 13699.79745493, with a leftover of 1.01e-07.