78438317 divided by 771 
Our goal is to divide 78438317 by 771.

On to step 1:
7 divided by 771 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 771

On to step 2:
If we divide 78 by 771, we get 0 and a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Append the next digit (4) from the dividend to 78 and continue with: 784 / 771

Step 3:
771 goes into 784 1 times with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 771 from 784 leaves us with 13.
Bring next digit (3) of the dividend behind the 13 and repeat the process: 133 / 771

Moving on to step 4:
771 can be fit into 133 0 times, resulting in a remainder of 133.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 133 leaves us with 133.
Bring next digit (8) of the dividend behind the 133 and repeat the process: 1338 / 771

Moving on to step 5:
The number 771 fits into 1338 1 times, leaving a remainder of 567.
The next digit of our result is 1. 
Result so far: 101.0
Subtract 771 from 1338 to get 567.
Include the next digit (3) from the dividend after 567, then repeat: 5673 / 771

Going ahead to step 6:
When dividing 5673 by 771, we get 7 with a remainder of 276.
The next digit of our result is 7. 
Result so far: 1017.0
Deduct 5397 from 5673 and we're left with 276.
Append the next digit (1) from the dividend to 276 and continue with: 2761 / 771

Advancing to step 7:
The number 771 fits into 2761 3 times, leaving a remainder of 448.
Write down 3 as next digit of the result. 
Result so far: 10173.0
Deduct 2313 from 2761 and we're left with 448.
Take the next digit (7) from the dividend and append it to 448, then repeat: 4487 / 771

Let's proceed to step 8:
771 goes into 4487 5 times with a remainder of 632.
The next digit of our result is 5. 
Result so far: 101735.0
Deduct 3855 from 4487 and we're left with 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Moving on to step 9:
When dividing 6320 by 771, we get 8 with a remainder of 152.
The next digit of our result is 8. 
Result so far: 101735.8
If we subtract 6168 from 6320, we get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 10:
771 can be fit into 1520 1 times, resulting in a remainder of 749.
Use 1 as the next digit of our solution. 
Result so far: 101735.81
If we subtract 771 from 1520, we get 749.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7490, and continue the process.

Step 11:
The number 771 fits into 7490 9 times, leaving a remainder of 551.
Write down 9 as next digit of the result. 
Result so far: 101735.819
Subtract 6939 from 7490 to get 551.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5510, and continue the process.

Going ahead to step 12:
771 goes into 5510 7 times with a remainder of 113.
Record the quotient 7 as the next digit in the result. 
Result so far: 101735.8197
Deduct 5397 from 5510 and we're left with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Let's proceed to step 13:
1130 divided by 771 is 1 with a remainder of 359.
The next digit of our result is 1. 
Result so far: 101735.81971
Deduct 771 from 1130 and we're left with 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Let's proceed to step 14:
771 goes into 3590 4 times with a remainder of 506.
The number 4 becomes the next digit in our result. 
Result so far: 101735.819714
Subtract 3084 from 3590 to get 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Going ahead to step 15:
771 can be fit into 5060 6 times, resulting in a remainder of 434.
The number 6 becomes the next digit in our result. 
Result so far: 101735.8197146
Deduct 4626 from 5060 and we're left with 434.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4340, and continue the process.

Let's proceed to step 16:
771 can be fit into 4340 5 times, resulting in a remainder of 485.
The number 5 becomes the next digit in our result. 
Result so far: 101735.81971465
The remainder is 485 after subtracting 3855 from 4340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

After the division, we end up with 101735.81971465 and a remainder of 4.85e-07.