75899811 divided by 780 
We want to figure out the number of times 75899811 can be divided by 780.

Let's proceed to step 1:
7 divided by 780 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 780

On to step 2:
75 divided by 780 is 0 with a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Fetch the next digit (8) from the dividend, attach it to 75 and continue: 758 / 780

Step 3:
780 goes into 758 0 times with a remainder of 758.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 758 leaves us with 758.
Take the next digit (9) from the dividend and append it to 758, then repeat: 7589 / 780

Going ahead to step 4:
If we divide 7589 by 780, we get 9 and a remainder of 569.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we take 7020 away from 7589, we end up with 569.
Take the next digit (9) from the dividend and append it to 569, then repeat: 5699 / 780

Advancing to step 5:
If we divide 5699 by 780, we get 7 and a remainder of 239.
Use 7 as the next digit of our solution. 
Result so far: 97.0
The remainder is 239 after subtracting 5460 from 5699.
Grab the next digit (8) from the dividend, add it to 239, then carry on: 2398 / 780

Step 6:
If we divide 2398 by 780, we get 3 and a remainder of 58.
The next digit of our result is 3. 
Result so far: 973.0
Deduct 2340 from 2398 and we're left with 58.
Bring next digit (1) of the dividend behind the 58 and repeat the process: 581 / 780

On to step 7:
780 can be fit into 581 0 times, resulting in a remainder of 581.
Record the quotient 0 as the next digit in the result. 
Result so far: 9730.0
Deduct 0 from 581 and we're left with 581.
Grab the next digit (1) from the dividend, add it to 581, then carry on: 5811 / 780

Moving on to step 8:
If we divide 5811 by 780, we get 7 and a remainder of 351.
The number 7 becomes the next digit in our result. 
Result so far: 97307.0
Deduct 5460 from 5811 and we're left with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Step 9:
If we divide 3510 by 780, we get 4 and a remainder of 390.
Put 4 as the next digit of the answer. 
Result so far: 97307.4
If we take 3120 away from 3510, we end up with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Moving on to step 10:
If we divide 3900 by 780, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 97307.45
Subtract 3900 from 3900 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
780 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 97307.45
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 12:
The number 780 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 97307.45
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 97307.45 with a remaining 0.0.