393407 divided by 77 
Our goal is to divide 393407 by 77.

Going ahead to step 1:
If we divide 3 by 77, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 77

Advancing to step 2:
77 goes into 39 0 times with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Take the next digit (3) from the dividend and append it to 39, then repeat: 393 / 77

Let's proceed to step 3:
If we divide 393 by 77, we get 5 and a remainder of 8.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 385 from 393 leaves us with 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 77

On to step 4:
77 goes into 84 1 times with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
If we subtract 77 from 84, we get 7.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 77

Advancing to step 5:
If we divide 70 by 77, we get 0 and a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 510.0
If we subtract 0 from 70, we get 70.
Take the next digit (7) from the dividend and append it to 70, then repeat: 707 / 77

On to step 6:
707 divided by 77 is 9 with a remainder of 14.
Put 9 as the next digit of the answer. 
Result so far: 5109.0
The remainder is 14 after subtracting 693 from 707.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
If we divide 140 by 77, we get 1 and a remainder of 63.
The number 1 becomes the next digit in our result. 
Result so far: 5109.1
Subtract 77 from 140 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 8:
If we divide 630 by 77, we get 8 and a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 5109.18
If we take 616 away from 630, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 9:
77 can be fit into 140 1 times, resulting in a remainder of 63.
The next digit of our result is 1. 
Result so far: 5109.181
If we subtract 77 from 140, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Going ahead to step 10:
77 can be fit into 630 8 times, resulting in a remainder of 14.
Use 8 as the next digit of our solution. 
Result so far: 5109.1818
If we take 616 away from 630, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 11:
140 divided by 77 is 1 with a remainder of 63.
Use 1 as the next digit of our solution. 
Result so far: 5109.18181
If we subtract 77 from 140, we get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 12:
630 divided by 77 is 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 5109.181818
If we subtract 616 from 630, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 13:
When dividing 140 by 77, we get 1 with a remainder of 63.
The number 1 becomes the next digit in our result. 
Result so far: 5109.1818181
Subtracting 77 from 140 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 14:
When dividing 630 by 77, we get 8 with a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 5109.18181818
If we subtract 616 from 630, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final result is 5109.18181818 with a remainder of 1.4e-08.