Let's divide 756389 by 40
We want to divide 756389 by 40.

On to step 1:
7 divided by 40 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (5) from the dividend, add it to 7, then carry on: 75 / 40

Let's proceed to step 2:
When dividing 75 by 40, we get 1 with a remainder of 35.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 40 from 75 and we're left with 35.
Append the next digit (6) from the dividend to 35 and continue with: 356 / 40

On to step 3:
When dividing 356 by 40, we get 8 with a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Subtract 320 from 356 to get 36.
Grab the next digit (3) from the dividend, add it to 36, then carry on: 363 / 40

On to step 4:
If we divide 363 by 40, we get 9 and a remainder of 3.
The next digit of our result is 9. 
Result so far: 189.0
Deduct 360 from 363 and we're left with 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 40

Moving on to step 5:
38 divided by 40 is 0 with a remainder of 38.
Record the quotient 0 as the next digit in the result. 
Result so far: 1890.0
If we take 0 away from 38, we end up with 38.
Take the next digit (9) from the dividend and append it to 38, then repeat: 389 / 40

Advancing to step 6:
389 divided by 40 is 9 with a remainder of 29.
Write down 9 as next digit of the result. 
Result so far: 18909.0
Subtracting 360 from 389 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
If we divide 290 by 40, we get 7 and a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 18909.7
Subtract 280 from 290 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
40 can be fit into 100 2 times, resulting in a remainder of 20.
The next digit of our result is 2. 
Result so far: 18909.72
Subtracting 80 from 100 leaves us with 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 9:
The number 40 fits into 200 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 18909.725
Deduct 200 from 200 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.

Going ahead to step 10:
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: 18909.725
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.

Moving on to step 11:
If we divide 0 by 40, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 18909.725
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.

The final outcome is 18909.725, with a leftover of 0.0.