19428101 divided by 780 
Let's see how many times 780 fits into 19428101.

Step 1:
If we divide 1 by 780, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 780

Advancing to step 2:
780 can be fit into 19 0 times, resulting in a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 19, we end up with 19.
Append the next digit (4) from the dividend to 19 and continue with: 194 / 780

On to step 3:
194 divided by 780 is 0 with a remainder of 194.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 194, we get 194.
Include the next digit (2) from the dividend after 194, then repeat: 1942 / 780

Step 4:
The number 780 fits into 1942 2 times, leaving a remainder of 382.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 1560 away from 1942, we end up with 382.
Take the next digit (8) from the dividend and append it to 382, then repeat: 3828 / 780

Going ahead to step 5:
780 can be fit into 3828 4 times, resulting in a remainder of 708.
Use 4 as the next digit of our solution. 
Result so far: 24.0
The remainder is 708 after subtracting 3120 from 3828.
Include the next digit (1) from the dividend after 708, then repeat: 7081 / 780

Advancing to step 6:
780 goes into 7081 9 times with a remainder of 61.
The next digit of our result is 9. 
Result so far: 249.0
The remainder is 61 after subtracting 7020 from 7081.
Append the next digit (0) from the dividend to 61 and continue with: 610 / 780

Going ahead to step 7:
610 divided by 780 is 0 with a remainder of 610.
Record the quotient 0 as the next digit in the result. 
Result so far: 2490.0
If we take 0 away from 610, we end up with 610.
Append the next digit (1) from the dividend to 610 and continue with: 6101 / 780

Moving on to step 8:
The number 780 fits into 6101 7 times, leaving a remainder of 641.
The number 7 becomes the next digit in our result. 
Result so far: 24907.0
Subtracting 5460 from 6101 leaves us with 641.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6410, and continue the process.

Going ahead to step 9:
6410 divided by 780 is 8 with a remainder of 170.
Record the quotient 8 as the next digit in the result. 
Result so far: 24907.8
Subtracting 6240 from 6410 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.

Going ahead to step 10:
When dividing 1700 by 780, we get 2 with a remainder of 140.
The next digit of our result is 2. 
Result so far: 24907.82
Deduct 1560 from 1700 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 11:
When dividing 1400 by 780, we get 1 with a remainder of 620.
Put 1 as the next digit of the answer. 
Result so far: 24907.821
Deduct 780 from 1400 and we're left with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Moving on to step 12:
The number 780 fits into 6200 7 times, leaving a remainder of 740.
The number 7 becomes the next digit in our result. 
Result so far: 24907.8217
The remainder is 740 after subtracting 5460 from 6200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Advancing to step 13:
780 can be fit into 7400 9 times, resulting in a remainder of 380.
The next digit of our result is 9. 
Result so far: 24907.82179
The remainder is 380 after subtracting 7020 from 7400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 14:
If we divide 3800 by 780, we get 4 and a remainder of 680.
Write down 4 as next digit of the result. 
Result so far: 24907.821794
Subtract 3120 from 3800 to get 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 15:
780 goes into 6800 8 times with a remainder of 560.
The number 8 becomes the next digit in our result. 
Result so far: 24907.8217948
Deduct 6240 from 6800 and we're left with 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 16:
5600 divided by 780 is 7 with a remainder of 140.
The number 7 becomes the next digit in our result. 
Result so far: 24907.82179487
The remainder is 140 after subtracting 5460 from 5600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

After the division, we end up with 24907.82179487 and a remainder of 1.4e-07.