77871783 ÷ 394 
We're looking to find how many times 394 goes into 77871783.

Let's proceed to step 1:
The number 394 fits into 7 0 times, leaving 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.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 394

Going ahead to step 2:
When dividing 77 by 394, we get 0 with a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 77 leaves us with 77.
Fetch the next digit (8) from the dividend, attach it to 77 and continue: 778 / 394

Let's proceed to step 3:
394 goes into 778 1 times with a remainder of 384.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 394 from 778, we get 384.
Append the next digit (7) from the dividend to 384 and continue with: 3847 / 394

On to step 4:
The number 394 fits into 3847 9 times, leaving a remainder of 301.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtracting 3546 from 3847 leaves us with 301.
Take the next digit (1) from the dividend and append it to 301, then repeat: 3011 / 394

Going ahead to step 5:
The number 394 fits into 3011 7 times, leaving a remainder of 253.
Record the quotient 7 as the next digit in the result. 
Result so far: 197.0
If we subtract 2758 from 3011, we get 253.
Fetch the next digit (7) from the dividend, attach it to 253 and continue: 2537 / 394

Let's proceed to step 6:
When dividing 2537 by 394, we get 6 with a remainder of 173.
The number 6 becomes the next digit in our result. 
Result so far: 1976.0
Deduct 2364 from 2537 and we're left with 173.
Bring next digit (8) of the dividend behind the 173 and repeat the process: 1738 / 394

Advancing to step 7:
If we divide 1738 by 394, we get 4 and a remainder of 162.
Record the quotient 4 as the next digit in the result. 
Result so far: 19764.0
Subtract 1576 from 1738 to get 162.
Include the next digit (3) from the dividend after 162, then repeat: 1623 / 394

Let's proceed to step 8:
394 can be fit into 1623 4 times, resulting in a remainder of 47.
Record the quotient 4 as the next digit in the result. 
Result so far: 197644.0
The remainder is 47 after subtracting 1576 from 1623.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 9:
470 divided by 394 is 1 with a remainder of 76.
Write down 1 as next digit of the result. 
Result so far: 197644.1
If we subtract 394 from 470, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 10:
394 goes into 760 1 times with a remainder of 366.
Use 1 as the next digit of our solution. 
Result so far: 197644.11
If we take 394 away from 760, we end up with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

In conclusion, the division gives 197644.11 with a balance of 0.366.