817779 divided by 45 
Let's see how many times 45 fits into 817779.

Step 1:
45 goes into 8 0 times with 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.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 45

Moving on to step 2:
The number 45 fits into 81 1 times, leaving a remainder of 36.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 45 from 81, we get 36.
Take the next digit (7) from the dividend and append it to 36, then repeat: 367 / 45

Advancing to step 3:
367 divided by 45 is 8 with a remainder of 7.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
The remainder is 7 after subtracting 360 from 367.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 45

On to step 4:
77 divided by 45 is 1 with a remainder of 32.
Record the quotient 1 as the next digit in the result. 
Result so far: 181.0
Subtracting 45 from 77 leaves us with 32.
Take the next digit (7) from the dividend and append it to 32, then repeat: 327 / 45

Moving on to step 5:
If we divide 327 by 45, we get 7 and a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 1817.0
If we take 315 away from 327, we end up with 12.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 45

Advancing to step 6:
When dividing 129 by 45, we get 2 with a remainder of 39.
Write down 2 as next digit of the result. 
Result so far: 18172.0
If we subtract 90 from 129, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 7:
If we divide 390 by 45, we get 8 and a remainder of 30.
Put 8 as the next digit of the answer. 
Result so far: 18172.8
Subtracting 360 from 390 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
300 divided by 45 is 6 with a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 18172.86
Subtracting 270 from 300 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 9:
If we divide 300 by 45, we get 6 and a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 18172.866
Subtracting 270 from 300 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 18172.866, with a leftover of 0.003.