We look at the division of 13669350 by 780 
Let's see how many times 780 fits into 13669350.

Going ahead to step 1:
1 divided by 780 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 780

Advancing to step 2:
When dividing 13 by 780, we get 0 with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Include the next digit (6) from the dividend after 13, then repeat: 136 / 780

Moving on to step 3:
If we divide 136 by 780, we get 0 and a remainder of 136.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 136 after subtracting 0 from 136.
Fetch the next digit (6) from the dividend, attach it to 136 and continue: 1366 / 780

On to step 4:
780 goes into 1366 1 times with a remainder of 586.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 586 after subtracting 780 from 1366.
Bring next digit (9) of the dividend behind the 586 and repeat the process: 5869 / 780

Moving on to step 5:
780 goes into 5869 7 times with a remainder of 409.
The next digit of our result is 7. 
Result so far: 17.0
If we take 5460 away from 5869, we end up with 409.
Bring next digit (3) of the dividend behind the 409 and repeat the process: 4093 / 780

Advancing to step 6:
780 can be fit into 4093 5 times, resulting in a remainder of 193.
The next digit of our result is 5. 
Result so far: 175.0
Subtract 3900 from 4093 to get 193.
Grab the next digit (5) from the dividend, add it to 193, then carry on: 1935 / 780

Advancing to step 7:
If we divide 1935 by 780, we get 2 and a remainder of 375.
Write down 2 as next digit of the result. 
Result so far: 1752.0
Subtract 1560 from 1935 to get 375.
Grab the next digit (0) from the dividend, add it to 375, then carry on: 3750 / 780

Going ahead to step 8:
780 can be fit into 3750 4 times, resulting in a remainder of 630.
Put 4 as the next digit of the answer. 
Result so far: 17524.0
Subtract 3120 from 3750 to get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Advancing to step 9:
The number 780 fits into 6300 8 times, leaving a remainder of 60.
The number 8 becomes the next digit in our result. 
Result so far: 17524.8
The remainder is 60 after subtracting 6240 from 6300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 10:
600 divided by 780 is 0 with a remainder of 600.
Use 0 as the next digit of our solution. 
Result so far: 17524.8
If we subtract 0 from 600, we get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 11:
The number 780 fits into 6000 7 times, leaving a remainder of 540.
Write down 7 as next digit of the result. 
Result so far: 17524.807
Subtracting 5460 from 6000 leaves us with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Moving on to step 12:
780 can be fit into 5400 6 times, resulting in a remainder of 720.
The number 6 becomes the next digit in our result. 
Result so far: 17524.8076
If we subtract 4680 from 5400, we get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Moving on to step 13:
If we divide 7200 by 780, we get 9 and a remainder of 180.
The next digit of our result is 9. 
Result so far: 17524.80769
If we take 7020 away from 7200, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Going ahead to step 14:
When dividing 1800 by 780, we get 2 with a remainder of 240.
The number 2 becomes the next digit in our result. 
Result so far: 17524.807692
Deduct 1560 from 1800 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 15:
780 goes into 2400 3 times with a remainder of 60.
Put 3 as the next digit of the answer. 
Result so far: 17524.8076923
Subtracting 2340 from 2400 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 16:
780 goes into 600 0 times with a remainder of 600.
Use 0 as the next digit of our solution. 
Result so far: 17524.8076923
The remainder is 600 after subtracting 0 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

The final result is 17524.8076923 with a remainder of 6e-07.