We divide 851589 by 45
We want to divide 851589 by 45.

Step 1:
45 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 45

Step 2:
If we divide 85 by 45, we get 1 and a remainder of 40.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 45 from 85 to get 40.
Append the next digit (1) from the dividend to 40 and continue with: 401 / 45

Going ahead to step 3:
401 divided by 45 is 8 with a remainder of 41.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
The remainder is 41 after subtracting 360 from 401.
Include the next digit (5) from the dividend after 41, then repeat: 415 / 45

Step 4:
When dividing 415 by 45, we get 9 with a remainder of 10.
The number 9 becomes the next digit in our result. 
Result so far: 189.0
Deduct 405 from 415 and we're left with 10.
Include the next digit (8) from the dividend after 10, then repeat: 108 / 45

On to step 5:
When dividing 108 by 45, we get 2 with a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 1892.0
Deduct 90 from 108 and we're left with 18.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 45

Step 6:
45 goes into 189 4 times with a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 18924.0
Subtract 180 from 189 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
45 goes into 90 2 times with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 18924.2
Deduct 90 from 90 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
The number 45 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 18924.2
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
If we divide 0 by 45, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 18924.2
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 18924.2 with a balance of 0.0.