We look at the division of 315608 by 77 
Our goal is to divide 315608 by 77.

Let's proceed 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
If we take 0 away from 3, we end up with 3.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 77

On to step 2:
77 goes into 31 0 times with a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 31, we end up with 31.
Include the next digit (5) from the dividend after 31, then repeat: 315 / 77

On to step 3:
The number 77 fits into 315 4 times, leaving a remainder of 7.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 308 from 315 leaves us with 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 77

Advancing to step 4:
When dividing 76 by 77, we get 0 with a remainder of 76.
Put 0 as the next digit of the answer. 
Result so far: 40.0
The remainder is 76 after subtracting 0 from 76.
Bring next digit (0) of the dividend behind the 76 and repeat the process: 760 / 77

Let's proceed to step 5:
If we divide 760 by 77, we get 9 and a remainder of 67.
Write down 9 as next digit of the result. 
Result so far: 409.0
Deduct 693 from 760 and we're left with 67.
Grab the next digit (8) from the dividend, add it to 67, then carry on: 678 / 77

Step 6:
678 divided by 77 is 8 with a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 4098.0
If we take 616 away from 678, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 7:
When dividing 620 by 77, we get 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 4098.8
Subtract 616 from 620 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
When dividing 40 by 77, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 4098.8
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
When dividing 400 by 77, we get 5 with a remainder of 15.
The next digit of our result is 5. 
Result so far: 4098.805
If we subtract 385 from 400, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 10:
When dividing 150 by 77, we get 1 with a remainder of 73.
Record the quotient 1 as the next digit in the result. 
Result so far: 4098.8051
Subtracting 77 from 150 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Going ahead to step 11:
The number 77 fits into 730 9 times, leaving a remainder of 37.
The next digit of our result is 9. 
Result so far: 4098.80519
If we subtract 693 from 730, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 12:
The number 77 fits into 370 4 times, leaving a remainder of 62.
Put 4 as the next digit of the answer. 
Result so far: 4098.805194
Subtracting 308 from 370 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 13:
When dividing 620 by 77, we get 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 4098.8051948
If we subtract 616 from 620, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 14:
77 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 4098.8051948
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 4098.8051948, with a leftover of 4e-08.