We divide 810843 by 40
We're looking to find how many times 40 goes into 810843.

On to step 1:
When dividing 8 by 40, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 40

Moving on to step 2:
40 goes into 81 2 times with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 80 away from 81, we end up with 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 40

Moving on to step 3:
When dividing 10 by 40, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
If we take 0 away from 10, we end up with 10.
Fetch the next digit (8) from the dividend, attach it to 10 and continue: 108 / 40

Advancing to step 4:
108 divided by 40 is 2 with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 202.0
The remainder is 28 after subtracting 80 from 108.
Grab the next digit (4) from the dividend, add it to 28, then carry on: 284 / 40

Advancing to step 5:
When dividing 284 by 40, we get 7 with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 2027.0
Subtracting 280 from 284 leaves us with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 40

Let's proceed to step 6:
The number 40 fits into 43 1 times, leaving a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 20271.0
If we take 40 away from 43, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
30 divided by 40 is 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 20271.0
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
40 can be fit into 300 7 times, resulting in a remainder of 20.
Record the quotient 7 as the next digit in the result. 
Result so far: 20271.07
The remainder is 20 after subtracting 280 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
When dividing 200 by 40, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 20271.075
If we take 200 away from 200, 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.

Let's proceed to step 10:
The number 40 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 20271.075
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.

Advancing to step 11:
40 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 20271.075
Deduct 0 from 0 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.

Our division results in 20271.075 with a remaining 0.0.