864401 ÷ 7 
We're looking to find how many times 7 goes into 864401.

Step 1:
The number 7 fits into 8 1 times, leaving a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 1 after subtracting 7 from 8.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 7

Moving on to step 2:
7 can be fit into 16 2 times, resulting in a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 2 after subtracting 14 from 16.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 7

Moving on to step 3:
If we divide 24 by 7, we get 3 and a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 123.0
If we subtract 21 from 24, we get 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 7

Step 4:
The number 7 fits into 34 4 times, leaving a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 1234.0
If we take 28 away from 34, we end up with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 7

Let's proceed to step 5:
If we divide 60 by 7, we get 8 and a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 12348.0
If we take 56 away from 60, we end up with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 7

Moving on to step 6:
7 goes into 41 5 times with a remainder of 6.
Use 5 as the next digit of our solution. 
Result so far: 123485.0
Deduct 35 from 41 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
The number 7 fits into 60 8 times, leaving a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 123485.8
The remainder is 4 after subtracting 56 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
The number 7 fits into 40 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 123485.85
Deduct 35 from 40 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
The number 7 fits into 50 7 times, leaving a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 123485.857
The remainder is 1 after subtracting 49 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 10:
10 divided by 7 is 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 123485.8571
If we take 7 away from 10, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 11:
If we divide 30 by 7, we get 4 and a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 123485.85714
Deduct 28 from 30 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 12:
7 goes into 20 2 times with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 123485.857142
The remainder is 6 after subtracting 14 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 13:
If we divide 60 by 7, we get 8 and a remainder of 4.
The next digit of our result is 8. 
Result so far: 123485.8571428
The remainder is 4 after subtracting 56 from 60.
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 14:
7 can be fit into 40 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 123485.85714285
If we take 35 away from 40, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 123485.85714285, and the remainder is 5e-09.