82119462 ÷ 643 
Our goal is to divide 82119462 by 643.

Moving on to step 1:
643 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 643

Going ahead to step 2:
If we divide 82 by 643, we get 0 and a remainder of 82.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 82 to get 82.
Bring next digit (1) of the dividend behind the 82 and repeat the process: 821 / 643

Advancing to step 3:
The number 643 fits into 821 1 times, leaving a remainder of 178.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 643 from 821, we get 178.
Take the next digit (1) from the dividend and append it to 178, then repeat: 1781 / 643

On to step 4:
1781 divided by 643 is 2 with a remainder of 495.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 1286 from 1781 to get 495.
Include the next digit (9) from the dividend after 495, then repeat: 4959 / 643

Going ahead to step 5:
4959 divided by 643 is 7 with a remainder of 458.
Put 7 as the next digit of the answer. 
Result so far: 127.0
If we take 4501 away from 4959, we end up with 458.
Fetch the next digit (4) from the dividend, attach it to 458 and continue: 4584 / 643

Moving on to step 6:
643 can be fit into 4584 7 times, resulting in a remainder of 83.
Write down 7 as next digit of the result. 
Result so far: 1277.0
The remainder is 83 after subtracting 4501 from 4584.
Fetch the next digit (6) from the dividend, attach it to 83 and continue: 836 / 643

Step 7:
836 divided by 643 is 1 with a remainder of 193.
Use 1 as the next digit of our solution. 
Result so far: 12771.0
If we subtract 643 from 836, we get 193.
Grab the next digit (2) from the dividend, add it to 193, then carry on: 1932 / 643

Advancing to step 8:
The number 643 fits into 1932 3 times, leaving a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 127713.0
Subtract 1929 from 1932 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 9:
The number 643 fits into 30 0 times, leaving a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 127713.0
Deduct 0 from 30 and we're left 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.

Step 10:
When dividing 300 by 643, we get 0 with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 127713.0
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Our division results in 127713.0 with a remaining 0.3.