646508 ÷ 54 
Our goal is to divide 646508 by 54.

Step 1:
The number 54 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our 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

Advancing to step 2:
54 can be fit into 64 1 times, resulting in a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 54 from 64 to get 10.
Fetch the next digit (6) from the dividend, attach it to 10 and continue: 106 / 54

Advancing to step 3:
54 goes into 106 1 times with a remainder of 52.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtract 54 from 106 to get 52.
Bring next digit (5) of the dividend behind the 52 and repeat the process: 525 / 54

Step 4:
54 goes into 525 9 times with a remainder of 39.
Write down 9 as next digit of the result. 
Result so far: 119.0
If we take 486 away from 525, we end up with 39.
Take the next digit (0) from the dividend and append it to 39, then repeat: 390 / 54

Let's proceed to step 5:
54 goes into 390 7 times with a remainder of 12.
Put 7 as the next digit of the answer. 
Result so far: 1197.0
If we subtract 378 from 390, we get 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 54

Advancing to step 6:
The number 54 fits into 128 2 times, leaving a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 11972.0
Subtract 108 from 128 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 7:
54 can be fit into 200 3 times, resulting in a remainder of 38.
The number 3 becomes the next digit in our result. 
Result so far: 11972.3
The remainder is 38 after subtracting 162 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 8:
380 divided by 54 is 7 with a remainder of 2.
The next digit of our result is 7. 
Result so far: 11972.37
If we subtract 378 from 380, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 9:
If we divide 20 by 54, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 11972.37
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 10:
When dividing 200 by 54, we get 3 with a remainder of 38.
The number 3 becomes the next digit in our result. 
Result so far: 11972.3703
Subtracting 162 from 200 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 11:
The number 54 fits into 380 7 times, leaving a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 11972.37037
The remainder is 2 after subtracting 378 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 12:
54 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 11972.37037
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 13:
If we divide 200 by 54, we get 3 and a remainder of 38.
The next digit of our result is 3. 
Result so far: 11972.3703703
Subtracting 162 from 200 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 14:
If we divide 380 by 54, we get 7 and a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 11972.37037037
Subtract 378 from 380 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The quotient of the division is 11972.37037037, and the remainder is 2e-09.