Let's divide 646202 by 40
Our goal is to divide 646202 by 40.

Step 1:
When dividing 6 by 40, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 40

Step 2:
The number 40 fits into 64 1 times, leaving a remainder of 24.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 40 from 64, we get 24.
Grab the next digit (6) from the dividend, add it to 24, then carry on: 246 / 40

Going ahead to step 3:
40 can be fit into 246 6 times, resulting in a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
If we subtract 240 from 246, we get 6.
Append the next digit (2) from the dividend to 6 and continue with: 62 / 40

On to step 4:
The number 40 fits into 62 1 times, leaving a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 161.0
Subtract 40 from 62 to get 22.
Grab the next digit (0) from the dividend, add it to 22, then carry on: 220 / 40

Let's proceed to step 5:
40 goes into 220 5 times with a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 1615.0
Deduct 200 from 220 and we're left with 20.
Take the next digit (2) from the dividend and append it to 20, then repeat: 202 / 40

Advancing to step 6:
The number 40 fits into 202 5 times, leaving a remainder of 2.
The number 5 becomes the next digit in our result. 
Result so far: 16155.0
The remainder is 2 after subtracting 200 from 202.
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 7:
20 divided by 40 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 16155.0
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.

Let's proceed to step 8:
200 divided by 40 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 16155.05
The remainder is 0 after subtracting 200 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
The number 40 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 16155.05
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.

Going ahead to step 10:
40 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 16155.05
Subtract 0 from 0 to 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.

The final result is 16155.05 with a remainder of 0.0.