Let's divide 643243 by 7
We want to figure out the number of times 643243 can be divided by 7.

On to step 1:
7 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 7

Going ahead to step 2:
64 divided by 7 is 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 9.0
Subtracting 63 from 64 leaves us with 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 7

Advancing to step 3:
7 can be fit into 13 1 times, resulting in a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 91.0
Subtracting 7 from 13 leaves us with 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 7

Moving on to step 4:
If we divide 62 by 7, we get 8 and a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 918.0
If we take 56 away from 62, we end up with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 7

Step 5:
The number 7 fits into 64 9 times, leaving a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 9189.0
Subtract 63 from 64 to get 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 7

Moving on to step 6:
When dividing 13 by 7, we get 1 with a remainder of 6.
Write down 1 as next digit of the result. 
Result so far: 91891.0
Subtracting 7 from 13 leaves us 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.

On to step 7:
7 can be fit into 60 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 91891.8
Subtracting 56 from 60 leaves us with 4.
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.
Put 5 as the next digit of the answer. 
Result so far: 91891.85
The remainder is 5 after subtracting 35 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 9:
The number 7 fits into 50 7 times, leaving a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 91891.857
Subtracting 49 from 50 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 10:
7 goes into 10 1 times with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 91891.8571
Subtract 7 from 10 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 11:
7 can be fit into 30 4 times, resulting in a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 91891.85714
Subtracting 28 from 30 leaves us 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.

Going ahead to step 12:
If we divide 20 by 7, we get 2 and a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 91891.857142
If we subtract 14 from 20, we get 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 13:
60 divided by 7 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 91891.8571428
If we take 56 away from 60, we end up with 4.
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:
When dividing 40 by 7, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 91891.85714285
The remainder is 5 after subtracting 35 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 91891.85714285 and a remainder of 5e-09.