Let's divide 646290 by 77
We want to figure out the number of times 646290 can be divided by 77.

Advancing to step 1:
77 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
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

Step 2:
If we divide 64 by 77, we get 0 and a remainder of 64.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Include the next digit (6) from the dividend after 64, then repeat: 646 / 77

Moving on to step 3:
If we divide 646 by 77, we get 8 and a remainder of 30.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 616 from 646 to get 30.
Grab the next digit (2) from the dividend, add it to 30, then carry on: 302 / 77

On to step 4:
302 divided by 77 is 3 with a remainder of 71.
The next digit of our result is 3. 
Result so far: 83.0
Deduct 231 from 302 and we're left with 71.
Bring next digit (9) of the dividend behind the 71 and repeat the process: 719 / 77

Moving on to step 5:
The number 77 fits into 719 9 times, leaving a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 839.0
Subtract 693 from 719 to get 26.
Include the next digit (0) from the dividend after 26, then repeat: 260 / 77

Advancing to step 6:
The number 77 fits into 260 3 times, leaving a remainder of 29.
Use 3 as the next digit of our solution. 
Result so far: 8393.0
Subtract 231 from 260 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
If we divide 290 by 77, we get 3 and a remainder of 59.
Record the quotient 3 as the next digit in the result. 
Result so far: 8393.3
Deduct 231 from 290 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 8:
77 can be fit into 590 7 times, resulting in a remainder of 51.
Write down 7 as next digit of the result. 
Result so far: 8393.37
The remainder is 51 after subtracting 539 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 9:
The number 77 fits into 510 6 times, leaving a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 8393.376
Subtracting 462 from 510 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
77 can be fit into 480 6 times, resulting in a remainder of 18.
Record the quotient 6 as the next digit in the result. 
Result so far: 8393.3766
If we subtract 462 from 480, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

After the division, we end up with 8393.3766 and a remainder of 0.00018.