13759580 divided by 780 
We want to figure out the number of times 13759580 can be divided by 780.

Going ahead to step 1:
When dividing 1 by 780, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 780

Let's proceed to step 2:
780 can be fit into 13 0 times, resulting in a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Bring next digit (7) of the dividend behind the 13 and repeat the process: 137 / 780

On to step 3:
137 divided by 780 is 0 with a remainder of 137.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 137 after subtracting 0 from 137.
Fetch the next digit (5) from the dividend, attach it to 137 and continue: 1375 / 780

Moving on to step 4:
1375 divided by 780 is 1 with a remainder of 595.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 780 away from 1375, we end up with 595.
Grab the next digit (9) from the dividend, add it to 595, then carry on: 5959 / 780

Step 5:
If we divide 5959 by 780, we get 7 and a remainder of 499.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we take 5460 away from 5959, we end up with 499.
Bring next digit (5) of the dividend behind the 499 and repeat the process: 4995 / 780

Moving on to step 6:
780 can be fit into 4995 6 times, resulting in a remainder of 315.
Write down 6 as next digit of the result. 
Result so far: 176.0
Subtracting 4680 from 4995 leaves us with 315.
Take the next digit (8) from the dividend and append it to 315, then repeat: 3158 / 780

Let's proceed to step 7:
The number 780 fits into 3158 4 times, leaving a remainder of 38.
Put 4 as the next digit of the answer. 
Result so far: 1764.0
If we take 3120 away from 3158, we end up with 38.
Fetch the next digit (0) from the dividend, attach it to 38 and continue: 380 / 780

On to step 8:
780 can be fit into 380 0 times, resulting in a remainder of 380.
The number 0 becomes the next digit in our result. 
Result so far: 17640.0
The remainder is 380 after subtracting 0 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

On to step 9:
When dividing 3800 by 780, we get 4 with a remainder of 680.
The next digit of our result is 4. 
Result so far: 17640.4
The remainder is 680 after subtracting 3120 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Moving on to step 10:
The number 780 fits into 6800 8 times, leaving a remainder of 560.
Record the quotient 8 as the next digit in the result. 
Result so far: 17640.48
If we subtract 6240 from 6800, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 11:
If we divide 5600 by 780, we get 7 and a remainder of 140.
The number 7 becomes the next digit in our result. 
Result so far: 17640.487
Deduct 5460 from 5600 and we're left 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.

On to step 12:
When dividing 1400 by 780, we get 1 with a remainder of 620.
Record the quotient 1 as the next digit in the result. 
Result so far: 17640.4871
Subtract 780 from 1400 to get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 13:
If we divide 6200 by 780, we get 7 and a remainder of 740.
Use 7 as the next digit of our solution. 
Result so far: 17640.48717
If we subtract 5460 from 6200, we get 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Going ahead to step 14:
7400 divided by 780 is 9 with a remainder of 380.
Record the quotient 9 as the next digit in the result. 
Result so far: 17640.487179
If we take 7020 away from 7400, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 15:
780 goes into 3800 4 times with a remainder of 680.
Use 4 as the next digit of our solution. 
Result so far: 17640.4871794
If we take 3120 away from 3800, we end up with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Step 16:
The number 780 fits into 6800 8 times, leaving a remainder of 560.
Record the quotient 8 as the next digit in the result. 
Result so far: 17640.48717948
If we subtract 6240 from 6800, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

The final outcome is 17640.48717948, with a leftover of 5.6e-07.