30560799 ÷ 643 
We want to divide 30560799 by 643.

Moving on to step 1:
The number 643 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 643

Let's proceed to step 2:
30 divided by 643 is 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Take the next digit (5) from the dividend and append it to 30, then repeat: 305 / 643

Going ahead to step 3:
643 goes into 305 0 times with a remainder of 305.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 305, we get 305.
Include the next digit (6) from the dividend after 305, then repeat: 3056 / 643

On to step 4:
When dividing 3056 by 643, we get 4 with a remainder of 484.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 2572 from 3056, we get 484.
Bring next digit (0) of the dividend behind the 484 and repeat the process: 4840 / 643

Going ahead to step 5:
If we divide 4840 by 643, we get 7 and a remainder of 339.
Record the quotient 7 as the next digit in the result. 
Result so far: 47.0
If we subtract 4501 from 4840, we get 339.
Grab the next digit (7) from the dividend, add it to 339, then carry on: 3397 / 643

Let's proceed to step 6:
The number 643 fits into 3397 5 times, leaving a remainder of 182.
The next digit of our result is 5. 
Result so far: 475.0
The remainder is 182 after subtracting 3215 from 3397.
Fetch the next digit (9) from the dividend, attach it to 182 and continue: 1829 / 643

Let's proceed to step 7:
When dividing 1829 by 643, we get 2 with a remainder of 543.
Write down 2 as next digit of the result. 
Result so far: 4752.0
Subtracting 1286 from 1829 leaves us with 543.
Bring next digit (9) of the dividend behind the 543 and repeat the process: 5439 / 643

Going ahead to step 8:
The number 643 fits into 5439 8 times, leaving a remainder of 295.
The next digit of our result is 8. 
Result so far: 47528.0
Deduct 5144 from 5439 and we're left with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Going ahead to step 9:
The number 643 fits into 2950 4 times, leaving a remainder of 378.
Put 4 as the next digit of the answer. 
Result so far: 47528.4
If we take 2572 away from 2950, we end up with 378.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3780, and continue the process.

Going ahead to step 10:
If we divide 3780 by 643, we get 5 and a remainder of 565.
Write down 5 as next digit of the result. 
Result so far: 47528.45
Deduct 3215 from 3780 and we're left with 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

Let's proceed to step 11:
643 can be fit into 5650 8 times, resulting in a remainder of 506.
Use 8 as the next digit of our solution. 
Result so far: 47528.458
The remainder is 506 after subtracting 5144 from 5650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

On to step 12:
When dividing 5060 by 643, we get 7 with a remainder of 559.
Write down 7 as next digit of the result. 
Result so far: 47528.4587
Deduct 4501 from 5060 and we're left with 559.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5590, and continue the process.

Step 13:
If we divide 5590 by 643, we get 8 and a remainder of 446.
Write down 8 as next digit of the result. 
Result so far: 47528.45878
Deduct 5144 from 5590 and we're left with 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Advancing to step 14:
4460 divided by 643 is 6 with a remainder of 602.
The number 6 becomes the next digit in our result. 
Result so far: 47528.458786
Subtract 3858 from 4460 to get 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Going ahead to step 15:
6020 divided by 643 is 9 with a remainder of 233.
Put 9 as the next digit of the answer. 
Result so far: 47528.4587869
If we take 5787 away from 6020, we end up with 233.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Step 16:
The number 643 fits into 2330 3 times, leaving a remainder of 401.
Record the quotient 3 as the next digit in the result. 
Result so far: 47528.45878693
Deduct 1929 from 2330 and we're left with 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

In conclusion, the division gives 47528.45878693 with a balance of 4.01e-07.