838378 ÷ 77 
Our goal is to divide 838378 by 77.

On to step 1:
The number 77 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 77

On to step 2:
The number 77 fits into 83 1 times, leaving a remainder of 6.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 77 from 83 leaves us with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 77

Going ahead to step 3:
If we divide 68 by 77, we get 0 and a remainder of 68.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 68 to get 68.
Append the next digit (3) from the dividend to 68 and continue with: 683 / 77

Moving on to step 4:
77 can be fit into 683 8 times, resulting in a remainder of 67.
Record the quotient 8 as the next digit in the result. 
Result so far: 108.0
If we subtract 616 from 683, we get 67.
Fetch the next digit (7) from the dividend, attach it to 67 and continue: 677 / 77

Step 5:
The number 77 fits into 677 8 times, leaving a remainder of 61.
The number 8 becomes the next digit in our result. 
Result so far: 1088.0
Subtracting 616 from 677 leaves us with 61.
Take the next digit (8) from the dividend and append it to 61, then repeat: 618 / 77

Let's proceed to step 6:
If we divide 618 by 77, we get 8 and a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 10888.0
If we subtract 616 from 618, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
When dividing 20 by 77, we get 0 with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 10888.0
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
77 goes into 200 2 times with a remainder of 46.
Write down 2 as next digit of the result. 
Result so far: 10888.02
Subtracting 154 from 200 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 9:
77 goes into 460 5 times with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 10888.025
If we subtract 385 from 460, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 10:
750 divided by 77 is 9 with a remainder of 57.
The next digit of our result is 9. 
Result so far: 10888.0259
Deduct 693 from 750 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 11:
570 divided by 77 is 7 with a remainder of 31.
The number 7 becomes the next digit in our result. 
Result so far: 10888.02597
Subtract 539 from 570 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 12:
77 can be fit into 310 4 times, resulting in a remainder of 2.
The next digit of our result is 4. 
Result so far: 10888.025974
If we subtract 308 from 310, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 13:
The number 77 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 10888.025974
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 14:
When dividing 200 by 77, we get 2 with a remainder of 46.
Put 2 as the next digit of the answer. 
Result so far: 10888.02597402
The remainder is 46 after subtracting 154 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Our division results in 10888.02597402 with a remaining 4.6e-08.