We divide 77976524 by 391
We want to figure out the number of times 77976524 can be divided by 391.

Advancing to step 1:
When dividing 7 by 391, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 391

Advancing to step 2:
When dividing 77 by 391, we get 0 with a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Bring next digit (9) of the dividend behind the 77 and repeat the process: 779 / 391

Advancing to step 3:
391 goes into 779 1 times with a remainder of 388.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 391 from 779 leaves us with 388.
Grab the next digit (7) from the dividend, add it to 388, then carry on: 3887 / 391

Going ahead to step 4:
391 can be fit into 3887 9 times, resulting in a remainder of 368.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtract 3519 from 3887 to get 368.
Include the next digit (6) from the dividend after 368, then repeat: 3686 / 391

Let's proceed to step 5:
If we divide 3686 by 391, we get 9 and a remainder of 167.
Use 9 as the next digit of our solution. 
Result so far: 199.0
If we take 3519 away from 3686, we end up with 167.
Append the next digit (5) from the dividend to 167 and continue with: 1675 / 391

Step 6:
When dividing 1675 by 391, we get 4 with a remainder of 111.
The next digit of our result is 4. 
Result so far: 1994.0
If we subtract 1564 from 1675, we get 111.
Grab the next digit (2) from the dividend, add it to 111, then carry on: 1112 / 391

Let's proceed to step 7:
The number 391 fits into 1112 2 times, leaving a remainder of 330.
The next digit of our result is 2. 
Result so far: 19942.0
Deduct 782 from 1112 and we're left with 330.
Append the next digit (4) from the dividend to 330 and continue with: 3304 / 391

Advancing to step 8:
391 can be fit into 3304 8 times, resulting in a remainder of 176.
The number 8 becomes the next digit in our result. 
Result so far: 199428.0
If we subtract 3128 from 3304, we get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Advancing to step 9:
391 can be fit into 1760 4 times, resulting in a remainder of 196.
Use 4 as the next digit of our solution. 
Result so far: 199428.4
Subtract 1564 from 1760 to get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Advancing to step 10:
1960 divided by 391 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 199428.45
The remainder is 5 after subtracting 1955 from 1960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 11:
391 can be fit into 50 0 times, resulting in a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 199428.45
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 12:
The number 391 fits into 500 1 times, leaving a remainder of 109.
Record the quotient 1 as the next digit in the result. 
Result so far: 199428.4501
Subtract 391 from 500 to get 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Moving on to step 13:
391 goes into 1090 2 times with a remainder of 308.
Record the quotient 2 as the next digit in the result. 
Result so far: 199428.45012
If we take 782 away from 1090, we end up with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Let's proceed to step 14:
The number 391 fits into 3080 7 times, leaving a remainder of 343.
The next digit of our result is 7. 
Result so far: 199428.450127
The remainder is 343 after subtracting 2737 from 3080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

Advancing to step 15:
391 can be fit into 3430 8 times, resulting in a remainder of 302.
The next digit of our result is 8. 
Result so far: 199428.4501278
Subtracting 3128 from 3430 leaves us with 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Step 16:
If we divide 3020 by 391, we get 7 and a remainder of 283.
The next digit of our result is 7. 
Result so far: 199428.45012787
If we subtract 2737 from 3020, we get 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

The quotient of the division is 199428.45012787, and the remainder is 2.83e-07.