We're dividing 643363 by 55 
We're looking to find how many times 55 goes into 643363.

Advancing to step 1:
The number 55 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
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 / 55

Going ahead to step 2:
55 goes into 64 1 times with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 9 after subtracting 55 from 64.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 55

Going ahead to step 3:
55 can be fit into 93 1 times, resulting in a remainder of 38.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Deduct 55 from 93 and we're left with 38.
Append the next digit (3) from the dividend to 38 and continue with: 383 / 55

Advancing to step 4:
55 can be fit into 383 6 times, resulting in a remainder of 53.
Use 6 as the next digit of our solution. 
Result so far: 116.0
Subtracting 330 from 383 leaves us with 53.
Fetch the next digit (6) from the dividend, attach it to 53 and continue: 536 / 55

Advancing to step 5:
If we divide 536 by 55, we get 9 and a remainder of 41.
The next digit of our result is 9. 
Result so far: 1169.0
Subtract 495 from 536 to get 41.
Take the next digit (3) from the dividend and append it to 41, then repeat: 413 / 55

On to step 6:
When dividing 413 by 55, we get 7 with a remainder of 28.
Use 7 as the next digit of our solution. 
Result so far: 11697.0
Subtract 385 from 413 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 7:
55 can be fit into 280 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 11697.5
Subtract 275 from 280 to get 5.
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 8:
If we divide 50 by 55, we get 0 and a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 11697.5
Subtracting 0 from 50 leaves us 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.

Moving on to step 9:
55 goes into 500 9 times with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 11697.509
Deduct 495 from 500 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.

Going ahead to step 10:
When dividing 50 by 55, we get 0 with a remainder of 50.
The next digit of our result is 0. 
Result so far: 11697.509
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.

Let's proceed to step 11:
55 goes into 500 9 times with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 11697.50909
Subtracting 495 from 500 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.

Step 12:
When dividing 50 by 55, we get 0 with a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 11697.50909
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 13:
500 divided by 55 is 9 with a remainder of 5.
Write down 9 as next digit of the result. 
Result so far: 11697.5090909
Deduct 495 from 500 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.

Step 14:
When dividing 50 by 55, we get 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 11697.5090909
Subtract 0 from 50 to get 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 11697.5090909, with a leftover of 5e-08.