819863 divided by 45 
Our goal is to divide 819863 by 45.

Advancing to step 1:
The number 45 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 45

On to step 2:
45 can be fit into 81 1 times, resulting in a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 45 from 81 and we're left with 36.
Bring next digit (9) of the dividend behind the 36 and repeat the process: 369 / 45

On to step 3:
If we divide 369 by 45, we get 8 and a remainder of 9.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Deduct 360 from 369 and we're left with 9.
Grab the next digit (8) from the dividend, add it to 9, then carry on: 98 / 45

Step 4:
98 divided by 45 is 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 182.0
Deduct 90 from 98 and we're left with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 45

Moving on to step 5:
When dividing 86 by 45, we get 1 with a remainder of 41.
The number 1 becomes the next digit in our result. 
Result so far: 1821.0
Deduct 45 from 86 and we're left with 41.
Bring next digit (3) of the dividend behind the 41 and repeat the process: 413 / 45

On to step 6:
45 goes into 413 9 times with a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 18219.0
The remainder is 8 after subtracting 405 from 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 7:
When dividing 80 by 45, we get 1 with a remainder of 35.
The number 1 becomes the next digit in our result. 
Result so far: 18219.1
The remainder is 35 after subtracting 45 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 8:
45 can be fit into 350 7 times, resulting in a remainder of 35.
Write down 7 as next digit of the result. 
Result so far: 18219.17
The remainder is 35 after subtracting 315 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 9:
45 goes into 350 7 times with a remainder of 35.
Write down 7 as next digit of the result. 
Result so far: 18219.177
Subtracting 315 from 350 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The final result is 18219.177 with a remainder of 0.0035.