864437 divided by 1 
We're looking to find how many times 1 goes into 864437.

Going ahead to step 1:
1 goes into 8 8 times with a remainder of 0.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 8 from 8 to get 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 1

On to step 2:
1 can be fit into 6 6 times, resulting in a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 86.0
Subtracting 6 from 6 leaves us with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 1

Advancing to step 3:
4 divided by 1 is 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 864.0
If we take 4 away from 4, we end up with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 1

Moving on to step 4:
The number 1 fits into 4 4 times, leaving a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 8644.0
Deduct 4 from 4 and we're left with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 1

On to step 5:
If we divide 3 by 1, we get 3 and a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 86443.0
Subtract 3 from 3 to get 0.
Grab the next digit (7) from the dividend, add it to 0, then carry on: 7 / 1

Let's proceed to step 6:
The number 1 fits into 7 7 times, leaving a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 864437.0
Deduct 7 from 7 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.

Moving on to step 7:
If we divide 0 by 1, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 864437.0
Subtracting 0 from 0 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.

Step 8:
0 divided by 1 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 864437.0
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 final outcome is 864437.0, with a leftover of 0.0.