We look at the division of 643346 by 68 
We want to figure out the number of times 643346 can be divided by 68.

On to step 1:
6 divided by 68 is 0 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.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 68

Step 2:
68 can be fit into 64 0 times, resulting in a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Bring next digit (3) of the dividend behind the 64 and repeat the process: 643 / 68

On to step 3:
When dividing 643 by 68, we get 9 with a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 9.0
The remainder is 31 after subtracting 612 from 643.
Include the next digit (3) from the dividend after 31, then repeat: 313 / 68

Moving on to step 4:
68 goes into 313 4 times with a remainder of 41.
Record the quotient 4 as the next digit in the result. 
Result so far: 94.0
Subtract 272 from 313 to get 41.
Take the next digit (4) from the dividend and append it to 41, then repeat: 414 / 68

Advancing to step 5:
When dividing 414 by 68, we get 6 with a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 946.0
Subtracting 408 from 414 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 68

Moving on to step 6:
The number 68 fits into 66 0 times, leaving a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 9460.0
Subtracting 0 from 66 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 7:
660 divided by 68 is 9 with a remainder of 48.
Record the quotient 9 as the next digit in the result. 
Result so far: 9460.9
If we subtract 612 from 660, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 8:
68 can be fit into 480 7 times, resulting in a remainder of 4.
The next digit of our result is 7. 
Result so far: 9460.97
The remainder is 4 after subtracting 476 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
68 can be fit into 40 0 times, resulting in a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 9460.97
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
400 divided by 68 is 5 with a remainder of 60.
The next digit of our result is 5. 
Result so far: 9460.9705
Subtract 340 from 400 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 11:
600 divided by 68 is 8 with a remainder of 56.
Write down 8 as next digit of the result. 
Result so far: 9460.97058
The remainder is 56 after subtracting 544 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 12:
When dividing 560 by 68, we get 8 with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 9460.970588
If we take 544 away from 560, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 9460.970588 with a remainder of 1.6e-06.