643416 ÷ 65 
We want to figure out the number of times 643416 can be divided by 65.

Step 1:
65 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 subtract 0 from 6, we get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 65

Let's proceed to step 2:
The number 65 fits into 64 0 times, leaving a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Fetch the next digit (3) from the dividend, attach it to 64 and continue: 643 / 65

Moving on to step 3:
If we divide 643 by 65, we get 9 and a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we take 585 away from 643, we end up with 58.
Take the next digit (4) from the dividend and append it to 58, then repeat: 584 / 65

Advancing to step 4:
When dividing 584 by 65, we get 8 with a remainder of 64.
The next digit of our result is 8. 
Result so far: 98.0
The remainder is 64 after subtracting 520 from 584.
Grab the next digit (1) from the dividend, add it to 64, then carry on: 641 / 65

On to step 5:
When dividing 641 by 65, we get 9 with a remainder of 56.
Use 9 as the next digit of our solution. 
Result so far: 989.0
If we subtract 585 from 641, we get 56.
Include the next digit (6) from the dividend after 56, then repeat: 566 / 65

Going ahead to step 6:
65 can be fit into 566 8 times, resulting in a remainder of 46.
Use 8 as the next digit of our solution. 
Result so far: 9898.0
Deduct 520 from 566 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 7:
If we divide 460 by 65, we get 7 and a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 9898.7
Deduct 455 from 460 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 8:
The number 65 fits into 50 0 times, leaving a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 9898.7
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
If we divide 500 by 65, we get 7 and a remainder of 45.
Put 7 as the next digit of the answer. 
Result so far: 9898.707
Subtract 455 from 500 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 10:
If we divide 450 by 65, we get 6 and a remainder of 60.
The number 6 becomes the next digit in our result. 
Result so far: 9898.7076
Subtracting 390 from 450 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 11:
65 can be fit into 600 9 times, resulting in a remainder of 15.
The next digit of our result is 9. 
Result so far: 9898.70769
Subtracting 585 from 600 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 12:
65 can be fit into 150 2 times, resulting in a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 9898.707692
Subtracting 130 from 150 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
65 can be fit into 200 3 times, resulting in a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 9898.7076923
Subtracting 195 from 200 leaves us 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 14:
When dividing 50 by 65, we get 0 with a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 9898.7076923
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 9898.7076923, with a leftover of 5e-08.