646744 ÷ 77 
We're looking to find how many times 77 goes into 646744.

Moving on to step 1:
6 divided by 77 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 77

Advancing to step 2:
The number 77 fits into 64 0 times, leaving a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Grab the next digit (6) from the dividend, add it to 64, then carry on: 646 / 77

On to step 3:
The number 77 fits into 646 8 times, leaving a remainder of 30.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 616 from 646 to get 30.
Take the next digit (7) from the dividend and append it to 30, then repeat: 307 / 77

Going ahead to step 4:
When dividing 307 by 77, we get 3 with a remainder of 76.
Write down 3 as next digit of the result. 
Result so far: 83.0
If we subtract 231 from 307, we get 76.
Grab the next digit (4) from the dividend, add it to 76, then carry on: 764 / 77

On to step 5:
77 can be fit into 764 9 times, resulting in a remainder of 71.
Record the quotient 9 as the next digit in the result. 
Result so far: 839.0
The remainder is 71 after subtracting 693 from 764.
Take the next digit (4) from the dividend and append it to 71, then repeat: 714 / 77

Moving on to step 6:
714 divided by 77 is 9 with a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 8399.0
Deduct 693 from 714 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 7:
When dividing 210 by 77, we get 2 with a remainder of 56.
Use 2 as the next digit of our solution. 
Result so far: 8399.2
The remainder is 56 after subtracting 154 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 8:
77 can be fit into 560 7 times, resulting in a remainder of 21.
The next digit of our result is 7. 
Result so far: 8399.27
Subtract 539 from 560 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 9:
If we divide 210 by 77, we get 2 and a remainder of 56.
Record the quotient 2 as the next digit in the result. 
Result so far: 8399.272
Subtracting 154 from 210 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 10:
560 divided by 77 is 7 with a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 8399.2727
Subtracting 539 from 560 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 11:
77 can be fit into 210 2 times, resulting in a remainder of 56.
Put 2 as the next digit of the answer. 
Result so far: 8399.27272
If we take 154 away from 210, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 12:
If we divide 560 by 77, we get 7 and a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 8399.272727
Deduct 539 from 560 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 13:
77 can be fit into 210 2 times, resulting in a remainder of 56.
Put 2 as the next digit of the answer. 
Result so far: 8399.2727272
The remainder is 56 after subtracting 154 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 14:
If we divide 560 by 77, we get 7 and a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 8399.27272727
Deduct 539 from 560 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

The quotient of the division is 8399.27272727, and the remainder is 2.1e-08.