We're dividing 48564816 by 645 
Let's see how many times 645 fits into 48564816.

Step 1:
645 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 645

Step 2:
645 goes into 48 0 times with a remainder of 48.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 48 after subtracting 0 from 48.
Include the next digit (5) from the dividend after 48, then repeat: 485 / 645

Going ahead to step 3:
When dividing 485 by 645, we get 0 with a remainder of 485.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 485 leaves us with 485.
Fetch the next digit (6) from the dividend, attach it to 485 and continue: 4856 / 645

Advancing to step 4:
When dividing 4856 by 645, we get 7 with a remainder of 341.
Write down 7 as next digit of the result. 
Result so far: 7.0
The remainder is 341 after subtracting 4515 from 4856.
Grab the next digit (4) from the dividend, add it to 341, then carry on: 3414 / 645

Let's proceed to step 5:
645 goes into 3414 5 times with a remainder of 189.
Record the quotient 5 as the next digit in the result. 
Result so far: 75.0
Subtracting 3225 from 3414 leaves us with 189.
Include the next digit (8) from the dividend after 189, then repeat: 1898 / 645

Moving on to step 6:
If we divide 1898 by 645, we get 2 and a remainder of 608.
The next digit of our result is 2. 
Result so far: 752.0
Subtract 1290 from 1898 to get 608.
Take the next digit (1) from the dividend and append it to 608, then repeat: 6081 / 645

Going ahead to step 7:
6081 divided by 645 is 9 with a remainder of 276.
Use 9 as the next digit of our solution. 
Result so far: 7529.0
Subtract 5805 from 6081 to get 276.
Take the next digit (6) from the dividend and append it to 276, then repeat: 2766 / 645

On to step 8:
2766 divided by 645 is 4 with a remainder of 186.
The next digit of our result is 4. 
Result so far: 75294.0
If we take 2580 away from 2766, we end up with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Step 9:
The number 645 fits into 1860 2 times, leaving a remainder of 570.
Put 2 as the next digit of the answer. 
Result so far: 75294.2
If we take 1290 away from 1860, we end up with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Advancing to step 10:
645 goes into 5700 8 times with a remainder of 540.
Write down 8 as next digit of the result. 
Result so far: 75294.28
If we take 5160 away from 5700, we end up with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Going ahead to step 11:
645 goes into 5400 8 times with a remainder of 240.
Put 8 as the next digit of the answer. 
Result so far: 75294.288
Deduct 5160 from 5400 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

In conclusion, the division gives 75294.288 with a balance of 0.024.