We're dividing 40015135 by 645 
Our goal is to divide 40015135 by 645.

Let's proceed to step 1:
If we divide 4 by 645, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 645

Advancing to step 2:
The number 645 fits into 40 0 times, leaving a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Grab the next digit (0) from the dividend, add it to 40, then carry on: 400 / 645

Moving on to step 3:
645 can be fit into 400 0 times, resulting in a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 400 to get 400.
Take the next digit (1) from the dividend and append it to 400, then repeat: 4001 / 645

On to step 4:
645 goes into 4001 6 times with a remainder of 131.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 3870 from 4001, we get 131.
Grab the next digit (5) from the dividend, add it to 131, then carry on: 1315 / 645

Going ahead to step 5:
When dividing 1315 by 645, we get 2 with a remainder of 25.
Put 2 as the next digit of the answer. 
Result so far: 62.0
The remainder is 25 after subtracting 1290 from 1315.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 645

Let's proceed to step 6:
If we divide 251 by 645, we get 0 and a remainder of 251.
Record the quotient 0 as the next digit in the result. 
Result so far: 620.0
Deduct 0 from 251 and we're left with 251.
Grab the next digit (3) from the dividend, add it to 251, then carry on: 2513 / 645

On to step 7:
If we divide 2513 by 645, we get 3 and a remainder of 578.
Use 3 as the next digit of our solution. 
Result so far: 6203.0
If we subtract 1935 from 2513, we get 578.
Grab the next digit (5) from the dividend, add it to 578, then carry on: 5785 / 645

Going ahead to step 8:
The number 645 fits into 5785 8 times, leaving a remainder of 625.
The number 8 becomes the next digit in our result. 
Result so far: 62038.0
If we take 5160 away from 5785, we end up with 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Step 9:
The number 645 fits into 6250 9 times, leaving a remainder of 445.
Record the quotient 9 as the next digit in the result. 
Result so far: 62038.9
If we take 5805 away from 6250, we end up with 445.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

Step 10:
If we divide 4450 by 645, we get 6 and a remainder of 580.
Use 6 as the next digit of our solution. 
Result so far: 62038.96
Subtract 3870 from 4450 to get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

On to step 11:
5800 divided by 645 is 8 with a remainder of 640.
Use 8 as the next digit of our solution. 
Result so far: 62038.968
If we take 5160 away from 5800, we end up with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 12:
6400 divided by 645 is 9 with a remainder of 595.
Write down 9 as next digit of the result. 
Result so far: 62038.9689
Subtract 5805 from 6400 to get 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Moving on to step 13:
If we divide 5950 by 645, we get 9 and a remainder of 145.
The next digit of our result is 9. 
Result so far: 62038.96899
If we subtract 5805 from 5950, we get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

The quotient of the division is 62038.96899, and the remainder is 0.000145.