644684 ÷ 10 
We want to divide 644684 by 10.

Advancing to step 1:
10 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 10

Moving on to step 2:
If we divide 64 by 10, we get 6 and a remainder of 4.
The next digit of our result is 6. 
Result so far: 6.0
Deduct 60 from 64 and we're left with 4.
Fetch the next digit (4) from the dividend, attach it to 4 and continue: 44 / 10

Advancing to step 3:
44 divided by 10 is 4 with a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 64.0
The remainder is 4 after subtracting 40 from 44.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 10

Advancing to step 4:
The number 10 fits into 46 4 times, leaving a remainder of 6.
The next digit of our result is 4. 
Result so far: 644.0
The remainder is 6 after subtracting 40 from 46.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 10

Advancing to step 5:
68 divided by 10 is 6 with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 6446.0
Subtracting 60 from 68 leaves us with 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 10

Advancing to step 6:
If we divide 84 by 10, we get 8 and a remainder of 4.
The next digit of our result is 8. 
Result so far: 64468.0
The remainder is 4 after subtracting 80 from 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 7:
When dividing 40 by 10, we get 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 64468.4
Subtracting 40 from 40 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
The number 10 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 64468.4
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
If we divide 0 by 10, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 64468.4
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 64468.4, and the remainder is 0.0.