We're dividing 643547 by 55 
Our goal is to divide 643547 by 55.

Advancing to step 1:
The number 55 fits into 6 0 times, leaving 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 / 55

Let's proceed to step 2:
55 can be fit into 64 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 55 from 64, we get 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 55

Step 3:
55 can be fit into 93 1 times, resulting in a remainder of 38.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
The remainder is 38 after subtracting 55 from 93.
Take the next digit (5) from the dividend and append it to 38, then repeat: 385 / 55

Step 4:
55 goes into 385 7 times with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 117.0
Subtracting 385 from 385 leaves us with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 55

Let's proceed to step 5:
55 can be fit into 4 0 times, resulting in a remainder of 4.
The next digit of our result is 0. 
Result so far: 1170.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 55

Let's proceed to step 6:
When dividing 47 by 55, we get 0 with a remainder of 47.
Use 0 as the next digit of our solution. 
Result so far: 11700.0
If we take 0 away from 47, we end up with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 7:
The number 55 fits into 470 8 times, leaving a remainder of 30.
Put 8 as the next digit of the answer. 
Result so far: 11700.8
Deduct 440 from 470 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
300 divided by 55 is 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 11700.85
The remainder is 25 after subtracting 275 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 9:
If we divide 250 by 55, we get 4 and a remainder of 30.
Record the quotient 4 as the next digit in the result. 
Result so far: 11700.854
If we subtract 220 from 250, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
300 divided by 55 is 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 11700.8545
The remainder is 25 after subtracting 275 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 11:
55 goes into 250 4 times with a remainder of 30.
Record the quotient 4 as the next digit in the result. 
Result so far: 11700.85454
If we subtract 220 from 250, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 12:
When dividing 300 by 55, we get 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 11700.854545
Subtract 275 from 300 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 13:
55 goes into 250 4 times with a remainder of 30.
The number 4 becomes the next digit in our result. 
Result so far: 11700.8545454
If we subtract 220 from 250, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 14:
300 divided by 55 is 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 11700.85454545
Subtract 275 from 300 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 11700.85454545, with a leftover of 2.5e-08.