6648648 ÷ 40 
Our goal is to divide 6648648 by 40.

Going ahead to step 1:
40 goes into 6 0 times with 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.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 40

Moving on to step 2:
66 divided by 40 is 1 with a remainder of 26.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 40 away from 66, we end up with 26.
Fetch the next digit (4) from the dividend, attach it to 26 and continue: 264 / 40

Advancing to step 3:
When dividing 264 by 40, we get 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we subtract 240 from 264, we get 24.
Include the next digit (8) from the dividend after 24, then repeat: 248 / 40

Moving on to step 4:
If we divide 248 by 40, we get 6 and a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 166.0
Subtract 240 from 248 to get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 40

On to step 5:
40 goes into 86 2 times with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 1662.0
Subtracting 80 from 86 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 40

Going ahead to step 6:
If we divide 64 by 40, we get 1 and a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 16621.0
Subtract 40 from 64 to get 24.
Fetch the next digit (8) from the dividend, attach it to 24 and continue: 248 / 40

Let's proceed to step 7:
40 goes into 248 6 times with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 166216.0
Deduct 240 from 248 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 8:
80 divided by 40 is 2 with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 166216.2
Deduct 80 from 80 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
The number 40 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 166216.2
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
The number 40 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 166216.2
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 166216.2 with a remaining 0.0.