4784780 divided by 645 
We want to figure out the number of times 4784780 can be divided by 645.

Step 1:
If we divide 4 by 645, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (7) from the dividend and append it to 4, then repeat: 47 / 645

On to step 2:
47 divided by 645 is 0 with a remainder of 47.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 47, we end up with 47.
Take the next digit (8) from the dividend and append it to 47, then repeat: 478 / 645

Going ahead to step 3:
If we divide 478 by 645, we get 0 and a remainder of 478.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 478, we get 478.
Append the next digit (4) from the dividend to 478 and continue with: 4784 / 645

Advancing to step 4:
4784 divided by 645 is 7 with a remainder of 269.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 4515 from 4784 to get 269.
Take the next digit (7) from the dividend and append it to 269, then repeat: 2697 / 645

Going ahead to step 5:
2697 divided by 645 is 4 with a remainder of 117.
Record the quotient 4 as the next digit in the result. 
Result so far: 74.0
Deduct 2580 from 2697 and we're left with 117.
Include the next digit (8) from the dividend after 117, then repeat: 1178 / 645

On to step 6:
The number 645 fits into 1178 1 times, leaving a remainder of 533.
Use 1 as the next digit of our solution. 
Result so far: 741.0
Deduct 645 from 1178 and we're left with 533.
Include the next digit (0) from the dividend after 533, then repeat: 5330 / 645

Step 7:
5330 divided by 645 is 8 with a remainder of 170.
Put 8 as the next digit of the answer. 
Result so far: 7418.0
Subtracting 5160 from 5330 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Going ahead to step 8:
The number 645 fits into 1700 2 times, leaving a remainder of 410.
Record the quotient 2 as the next digit in the result. 
Result so far: 7418.2
If we subtract 1290 from 1700, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Step 9:
If we divide 4100 by 645, we get 6 and a remainder of 230.
Put 6 as the next digit of the answer. 
Result so far: 7418.26
If we subtract 3870 from 4100, we get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 10:
645 goes into 2300 3 times with a remainder of 365.
Write down 3 as next digit of the result. 
Result so far: 7418.263
Subtract 1935 from 2300 to get 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Let's proceed to step 11:
645 can be fit into 3650 5 times, resulting in a remainder of 425.
The number 5 becomes the next digit in our result. 
Result so far: 7418.2635
If we subtract 3225 from 3650, we get 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

On to step 12:
645 goes into 4250 6 times with a remainder of 380.
Put 6 as the next digit of the answer. 
Result so far: 7418.26356
Deduct 3870 from 4250 and we're left with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 13:
When dividing 3800 by 645, we get 5 with a remainder of 575.
Write down 5 as next digit of the result. 
Result so far: 7418.263565
Subtracting 3225 from 3800 leaves us with 575.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5750, and continue the process.

Step 14:
The number 645 fits into 5750 8 times, leaving a remainder of 590.
The next digit of our result is 8. 
Result so far: 7418.2635658
Deduct 5160 from 5750 and we're left with 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Going ahead to step 15:
The number 645 fits into 5900 9 times, leaving a remainder of 95.
Put 9 as the next digit of the answer. 
Result so far: 7418.26356589
Subtracting 5805 from 5900 leaves us with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

In conclusion, the division gives 7418.26356589 with a balance of 9.5e-08.