12779360 ÷ 405 
We want to figure out the number of times 12779360 can be divided by 405.

Going ahead to step 1:
If we divide 1 by 405, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 405

Step 2:
When dividing 12 by 405, we get 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Take the next digit (7) from the dividend and append it to 12, then repeat: 127 / 405

Step 3:
When dividing 127 by 405, we get 0 with a remainder of 127.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 127 leaves us with 127.
Bring next digit (7) of the dividend behind the 127 and repeat the process: 1277 / 405

Moving on to step 4:
405 can be fit into 1277 3 times, resulting in a remainder of 62.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 1215 from 1277, we get 62.
Take the next digit (9) from the dividend and append it to 62, then repeat: 629 / 405

Step 5:
405 goes into 629 1 times with a remainder of 224.
Put 1 as the next digit of the answer. 
Result so far: 31.0
Deduct 405 from 629 and we're left with 224.
Bring next digit (3) of the dividend behind the 224 and repeat the process: 2243 / 405

Let's proceed to step 6:
When dividing 2243 by 405, we get 5 with a remainder of 218.
Put 5 as the next digit of the answer. 
Result so far: 315.0
If we subtract 2025 from 2243, we get 218.
Grab the next digit (6) from the dividend, add it to 218, then carry on: 2186 / 405

Let's proceed to step 7:
405 can be fit into 2186 5 times, resulting in a remainder of 161.
The number 5 becomes the next digit in our result. 
Result so far: 3155.0
If we take 2025 away from 2186, we end up with 161.
Include the next digit (0) from the dividend after 161, then repeat: 1610 / 405

Let's proceed to step 8:
When dividing 1610 by 405, we get 3 with a remainder of 395.
The number 3 becomes the next digit in our result. 
Result so far: 31553.0
If we take 1215 away from 1610, we end up with 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Moving on to step 9:
When dividing 3950 by 405, we get 9 with a remainder of 305.
Write down 9 as next digit of the result. 
Result so far: 31553.9
If we take 3645 away from 3950, we end up with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Step 10:
The number 405 fits into 3050 7 times, leaving a remainder of 215.
The number 7 becomes the next digit in our result. 
Result so far: 31553.97
If we take 2835 away from 3050, we end up with 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

On to step 11:
405 goes into 2150 5 times with a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 31553.975
Subtracting 2025 from 2150 leaves us with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 12:
405 goes into 1250 3 times with a remainder of 35.
Use 3 as the next digit of our solution. 
Result so far: 31553.9753
Deduct 1215 from 1250 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 13:
350 divided by 405 is 0 with a remainder of 350.
Record the quotient 0 as the next digit in the result. 
Result so far: 31553.9753
Subtracting 0 from 350 leaves us 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.

Step 14:
The number 405 fits into 3500 8 times, leaving a remainder of 260.
Write down 8 as next digit of the result. 
Result so far: 31553.975308
The remainder is 260 after subtracting 3240 from 3500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Let's proceed to step 15:
When dividing 2600 by 405, we get 6 with a remainder of 170.
Use 6 as the next digit of our solution. 
Result so far: 31553.9753086
The remainder is 170 after subtracting 2430 from 2600.
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 16:
405 goes into 1700 4 times with a remainder of 80.
Record the quotient 4 as the next digit in the result. 
Result so far: 31553.97530864
Subtract 1620 from 1700 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The quotient of the division is 31553.97530864, and the remainder is 8e-08.