We look at the division of 40325510 by 42 
We want to figure out the number of times 40325510 can be divided by 42.

Advancing to step 1:
The number 42 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 42

Going ahead to step 2:
42 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Grab the next digit (3) from the dividend, add it to 40, then carry on: 403 / 42

Step 3:
When dividing 403 by 42, we get 9 with a remainder of 25.
The next digit of our result is 9. 
Result so far: 9.0
Subtracting 378 from 403 leaves us with 25.
Include the next digit (2) from the dividend after 25, then repeat: 252 / 42

Going ahead to step 4:
252 divided by 42 is 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 96.0
Subtract 252 from 252 to get 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 42

Moving on to step 5:
The number 42 fits into 5 0 times, leaving a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 960.0
If we take 0 away from 5, we end up with 5.
Take the next digit (5) from the dividend and append it to 5, then repeat: 55 / 42

Let's proceed to step 6:
55 divided by 42 is 1 with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 9601.0
If we take 42 away from 55, we end up with 13.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 42

On to step 7:
42 goes into 131 3 times with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 96013.0
Deduct 126 from 131 and we're left with 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 42

Let's proceed to step 8:
If we divide 50 by 42, we get 1 and a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 960131.0
Subtract 42 from 50 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 9:
If we divide 80 by 42, we get 1 and a remainder of 38.
Write down 1 as next digit of the result. 
Result so far: 960131.1
If we take 42 away from 80, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 10:
The number 42 fits into 380 9 times, leaving a remainder of 2.
The number 9 becomes the next digit in our result. 
Result so far: 960131.19
If we take 378 away from 380, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 11:
The number 42 fits into 20 0 times, leaving a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 960131.19
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.

Step 12:
If we divide 200 by 42, we get 4 and a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 960131.1904
If we take 168 away from 200, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 13:
320 divided by 42 is 7 with a remainder of 26.
Write down 7 as next digit of the result. 
Result so far: 960131.19047
Deduct 294 from 320 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 14:
42 can be fit into 260 6 times, resulting in a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 960131.190476
Subtract 252 from 260 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 15:
42 goes into 80 1 times with a remainder of 38.
Put 1 as the next digit of the answer. 
Result so far: 960131.1904761
Subtract 42 from 80 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 16:
When dividing 380 by 42, we get 9 with a remainder of 2.
The next digit of our result is 9. 
Result so far: 960131.19047619
Subtract 378 from 380 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

In conclusion, the division gives 960131.19047619 with a balance of 2e-09.