34431244 divided by 643 
We're looking to find how many times 643 goes into 34431244.

Moving on to step 1:
If we divide 3 by 643, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 643

Let's proceed to step 2:
643 goes into 34 0 times with a remainder of 34.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 34, we end up with 34.
Take the next digit (4) from the dividend and append it to 34, then repeat: 344 / 643

Moving on to step 3:
344 divided by 643 is 0 with a remainder of 344.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 344 to get 344.
Bring next digit (3) of the dividend behind the 344 and repeat the process: 3443 / 643

Going ahead to step 4:
643 goes into 3443 5 times with a remainder of 228.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 3215 from 3443 and we're left with 228.
Include the next digit (1) from the dividend after 228, then repeat: 2281 / 643

Advancing to step 5:
If we divide 2281 by 643, we get 3 and a remainder of 352.
The number 3 becomes the next digit in our result. 
Result so far: 53.0
The remainder is 352 after subtracting 1929 from 2281.
Bring next digit (2) of the dividend behind the 352 and repeat the process: 3522 / 643

Let's proceed to step 6:
The number 643 fits into 3522 5 times, leaving a remainder of 307.
The number 5 becomes the next digit in our result. 
Result so far: 535.0
Subtract 3215 from 3522 to get 307.
Include the next digit (4) from the dividend after 307, then repeat: 3074 / 643

Going ahead to step 7:
3074 divided by 643 is 4 with a remainder of 502.
The number 4 becomes the next digit in our result. 
Result so far: 5354.0
Subtract 2572 from 3074 to get 502.
Include the next digit (4) from the dividend after 502, then repeat: 5024 / 643

Moving on to step 8:
5024 divided by 643 is 7 with a remainder of 523.
Put 7 as the next digit of the answer. 
Result so far: 53547.0
If we take 4501 away from 5024, we end up with 523.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5230, and continue the process.

Going ahead to step 9:
If we divide 5230 by 643, we get 8 and a remainder of 86.
The number 8 becomes the next digit in our result. 
Result so far: 53547.8
If we subtract 5144 from 5230, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 10:
643 can be fit into 860 1 times, resulting in a remainder of 217.
Put 1 as the next digit of the answer. 
Result so far: 53547.81
Subtracting 643 from 860 leaves us with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

On to step 11:
2170 divided by 643 is 3 with a remainder of 241.
The next digit of our result is 3. 
Result so far: 53547.813
Deduct 1929 from 2170 and we're left with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Moving on to step 12:
643 goes into 2410 3 times with a remainder of 481.
Put 3 as the next digit of the answer. 
Result so far: 53547.8133
The remainder is 481 after subtracting 1929 from 2410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

The final outcome is 53547.8133, with a leftover of 0.00481.