Let's divide 645945 by 54
Our goal is to divide 645945 by 54.

Moving on to step 1:
The number 54 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
Subtract 0 from 6 to get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 54

Step 2:
When dividing 64 by 54, we get 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 54 from 64 to get 10.
Include the next digit (5) from the dividend after 10, then repeat: 105 / 54

On to step 3:
If we divide 105 by 54, we get 1 and a remainder of 51.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we subtract 54 from 105, we get 51.
Grab the next digit (9) from the dividend, add it to 51, then carry on: 519 / 54

Advancing to step 4:
The number 54 fits into 519 9 times, leaving a remainder of 33.
The next digit of our result is 9. 
Result so far: 119.0
If we take 486 away from 519, we end up with 33.
Include the next digit (4) from the dividend after 33, then repeat: 334 / 54

On to step 5:
54 goes into 334 6 times with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 1196.0
If we subtract 324 from 334, we get 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 54

Advancing to step 6:
54 goes into 105 1 times with a remainder of 51.
Put 1 as the next digit of the answer. 
Result so far: 11961.0
Subtract 54 from 105 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 7:
54 can be fit into 510 9 times, resulting in a remainder of 24.
Record the quotient 9 as the next digit in the result. 
Result so far: 11961.9
The remainder is 24 after subtracting 486 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 8:
54 can be fit into 240 4 times, resulting in a remainder of 24.
The next digit of our result is 4. 
Result so far: 11961.94
If we subtract 216 from 240, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 9:
The number 54 fits into 240 4 times, leaving a remainder of 24.
The next digit of our result is 4. 
Result so far: 11961.944
Subtract 216 from 240 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 11961.944 with a remainder of 0.0024.