Let's divide 1575902 by 45
We want to figure out the number of times 1575902 can be divided by 45.

Moving on to step 1:
If we divide 1 by 45, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 45

On to step 2:
When dividing 15 by 45, we get 0 with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 45

Step 3:
When dividing 157 by 45, we get 3 with a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 135 away from 157, we end up with 22.
Take the next digit (5) from the dividend and append it to 22, then repeat: 225 / 45

On to step 4:
225 divided by 45 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 35.0
If we subtract 225 from 225, we get 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 45

Advancing to step 5:
9 divided by 45 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 350.0
If we subtract 0 from 9, we get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 45

Going ahead to step 6:
When dividing 90 by 45, we get 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 3502.0
Deduct 90 from 90 and we're left with 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 45

On to step 7:
When dividing 2 by 45, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 35020.0
If we take 0 away from 2, 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.

Advancing to step 8:
45 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 35020.0
Deduct 0 from 20 and we're left 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.

Going ahead to step 9:
The number 45 fits into 200 4 times, leaving a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 35020.04
Deduct 180 from 200 and we're left 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.

On to step 10:
200 divided by 45 is 4 with a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 35020.044
Subtract 180 from 200 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.

After the division, we end up with 35020.044 and a remainder of 0.002.