Let's divide 646931 by 77
We want to divide 646931 by 77.

On to step 1:
77 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 77

Let's proceed to step 2:
77 can be fit into 64 0 times, resulting in a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Take the next digit (6) from the dividend and append it to 64, then repeat: 646 / 77

Moving on to step 3:
77 can be fit into 646 8 times, resulting in a remainder of 30.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 616 from 646, we get 30.
Grab the next digit (9) from the dividend, add it to 30, then carry on: 309 / 77

Step 4:
77 can be fit into 309 4 times, resulting in a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 84.0
Subtracting 308 from 309 leaves us with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 77

Moving on to step 5:
If we divide 13 by 77, we get 0 and a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 840.0
If we take 0 away from 13, we end up with 13.
Grab the next digit (1) from the dividend, add it to 13, then carry on: 131 / 77

Going ahead to step 6:
If we divide 131 by 77, we get 1 and a remainder of 54.
Use 1 as the next digit of our solution. 
Result so far: 8401.0
If we take 77 away from 131, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 7:
77 goes into 540 7 times with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 8401.7
Deduct 539 from 540 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 8:
The number 77 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 8401.7
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
The number 77 fits into 100 1 times, leaving a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 8401.701
Subtracting 77 from 100 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 10:
230 divided by 77 is 2 with a remainder of 76.
Record the quotient 2 as the next digit in the result. 
Result so far: 8401.7012
Subtracting 154 from 230 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 11:
If we divide 760 by 77, we get 9 and a remainder of 67.
Put 9 as the next digit of the answer. 
Result so far: 8401.70129
If we take 693 away from 760, we end up with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 12:
If we divide 670 by 77, we get 8 and a remainder of 54.
Use 8 as the next digit of our solution. 
Result so far: 8401.701298
The remainder is 54 after subtracting 616 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 13:
77 goes into 540 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 8401.7012987
The remainder is 1 after subtracting 539 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 14:
The number 77 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 8401.7012987
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 8401.7012987 with a remainder of 1e-08.