We look at the division of 891428 by 45 
We want to figure out the number of times 891428 can be divided by 45.

Advancing to step 1:
The number 45 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 45

Going ahead to step 2:
45 goes into 89 1 times with a remainder of 44.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 44 after subtracting 45 from 89.
Take the next digit (1) from the dividend and append it to 44, then repeat: 441 / 45

Advancing to step 3:
If we divide 441 by 45, we get 9 and a remainder of 36.
The next digit of our result is 9. 
Result so far: 19.0
Subtracting 405 from 441 leaves us with 36.
Include the next digit (4) from the dividend after 36, then repeat: 364 / 45

Let's proceed to step 4:
If we divide 364 by 45, we get 8 and a remainder of 4.
The next digit of our result is 8. 
Result so far: 198.0
Subtracting 360 from 364 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 45

Let's proceed to step 5:
42 divided by 45 is 0 with a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 1980.0
If we take 0 away from 42, we end up with 42.
Bring next digit (8) of the dividend behind the 42 and repeat the process: 428 / 45

Going ahead to step 6:
45 goes into 428 9 times with a remainder of 23.
Put 9 as the next digit of the answer. 
Result so far: 19809.0
Subtract 405 from 428 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 7:
When dividing 230 by 45, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 19809.5
Deduct 225 from 230 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 8:
When dividing 50 by 45, we get 1 with a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 19809.51
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
50 divided by 45 is 1 with a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 19809.511
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 19809.511 and a remainder of 0.0005.