651486 divided by 40 
We're looking to find how many times 40 goes into 651486.

Let's proceed to step 1:
If we divide 6 by 40, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 40

Advancing to step 2:
If we divide 65 by 40, we get 1 and a remainder of 25.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 40 from 65 to get 25.
Include the next digit (1) from the dividend after 25, then repeat: 251 / 40

Going ahead to step 3:
251 divided by 40 is 6 with a remainder of 11.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtracting 240 from 251 leaves us with 11.
Take the next digit (4) from the dividend and append it to 11, then repeat: 114 / 40

Moving on to step 4:
If we divide 114 by 40, we get 2 and a remainder of 34.
Record the quotient 2 as the next digit in the result. 
Result so far: 162.0
If we take 80 away from 114, we end up with 34.
Fetch the next digit (8) from the dividend, attach it to 34 and continue: 348 / 40

Moving on to step 5:
The number 40 fits into 348 8 times, leaving a remainder of 28.
Put 8 as the next digit of the answer. 
Result so far: 1628.0
The remainder is 28 after subtracting 320 from 348.
Take the next digit (6) from the dividend and append it to 28, then repeat: 286 / 40

Moving on to step 6:
The number 40 fits into 286 7 times, leaving a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 16287.0
Deduct 280 from 286 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
The number 40 fits into 60 1 times, leaving a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 16287.1
If we subtract 40 from 60, 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.

Going ahead to step 8:
200 divided by 40 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 16287.15
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.

Going ahead to step 9:
The number 40 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 16287.15
Subtracting 0 from 0 leaves us 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.

Moving on to step 10:
When dividing 0 by 40, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 16287.15
If we take 0 away from 0, we end up 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.

After the division, we end up with 16287.15 and a remainder of 0.0.