We divide 643706 by 1
We want to divide 643706 by 1.

Going ahead to step 1:
1 can be fit into 6 6 times, resulting in a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
The remainder is 0 after subtracting 6 from 6.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 1

Step 2:
1 goes into 4 4 times with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 64.0
Deduct 4 from 4 and we're left with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 1

Going ahead to step 3:
3 divided by 1 is 3 with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 643.0
Subtract 3 from 3 to get 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 1

Moving on to step 4:
7 divided by 1 is 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 6437.0
Deduct 7 from 7 and we're left with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 1

Moving on to step 5:
1 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 64370.0
The remainder is 0 after subtracting 0 from 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 1

On to step 6:
6 divided by 1 is 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 643706.0
If we subtract 6 from 6, 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.

Moving on to step 7:
0 divided by 1 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 643706.0
Deduct 0 from 0 and we're left 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.

Advancing to step 8:
0 divided by 1 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 643706.0
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.

Our division results in 643706.0 with a remaining 0.0.