873601 divided by 45 
Let's see how many times 45 fits into 873601.

Going ahead to step 1:
If we divide 8 by 45, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 45

Moving on to step 2:
The number 45 fits into 87 1 times, leaving a remainder of 42.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 45 from 87 and we're left with 42.
Bring next digit (3) of the dividend behind the 42 and repeat the process: 423 / 45

Let's proceed to step 3:
45 goes into 423 9 times with a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
If we take 405 away from 423, we end up with 18.
Fetch the next digit (6) from the dividend, attach it to 18 and continue: 186 / 45

Let's proceed to step 4:
45 goes into 186 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 194.0
Subtracting 180 from 186 leaves us with 6.
Bring next digit (0) of the dividend behind the 6 and repeat the process: 60 / 45

Let's proceed to step 5:
45 can be fit into 60 1 times, resulting in a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 1941.0
Subtract 45 from 60 to get 15.
Bring next digit (1) of the dividend behind the 15 and repeat the process: 151 / 45

Going ahead to step 6:
151 divided by 45 is 3 with a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 19413.0
If we take 135 away from 151, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 7:
When dividing 160 by 45, we get 3 with a remainder of 25.
Use 3 as the next digit of our solution. 
Result so far: 19413.3
Deduct 135 from 160 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 8:
If we divide 250 by 45, we get 5 and a remainder of 25.
The next digit of our result is 5. 
Result so far: 19413.35
The remainder is 25 after subtracting 225 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 9:
When dividing 250 by 45, we get 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 19413.355
If we subtract 225 from 250, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 19413.355 with a remainder of 0.0025.