643328 divided by 84 
Our goal is to divide 643328 by 84.

Advancing to step 1:
84 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 84

Going ahead to step 2:
64 divided by 84 is 0 with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Include the next digit (3) from the dividend after 64, then repeat: 643 / 84

Going ahead to step 3:
When dividing 643 by 84, we get 7 with a remainder of 55.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 588 from 643 to get 55.
Fetch the next digit (3) from the dividend, attach it to 55 and continue: 553 / 84

Going ahead to step 4:
If we divide 553 by 84, we get 6 and a remainder of 49.
The number 6 becomes the next digit in our result. 
Result so far: 76.0
Subtract 504 from 553 to get 49.
Include the next digit (2) from the dividend after 49, then repeat: 492 / 84

Let's proceed to step 5:
84 can be fit into 492 5 times, resulting in a remainder of 72.
Use 5 as the next digit of our solution. 
Result so far: 765.0
The remainder is 72 after subtracting 420 from 492.
Grab the next digit (8) from the dividend, add it to 72, then carry on: 728 / 84

Let's proceed to step 6:
If we divide 728 by 84, we get 8 and a remainder of 56.
Write down 8 as next digit of the result. 
Result so far: 7658.0
Subtracting 672 from 728 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 7:
The number 84 fits into 560 6 times, leaving a remainder of 56.
Put 6 as the next digit of the answer. 
Result so far: 7658.6
If we take 504 away from 560, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 8:
If we divide 560 by 84, we get 6 and a remainder of 56.
Put 6 as the next digit of the answer. 
Result so far: 7658.66
The remainder is 56 after subtracting 504 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

After the division, we end up with 7658.66 and a remainder of 0.056.