84463872 ÷ 639 
We're looking to find how many times 639 goes into 84463872.

Going ahead to step 1:
639 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 639

On to step 2:
The number 639 fits into 84 0 times, leaving a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 84, we end up with 84.
Include the next digit (4) from the dividend after 84, then repeat: 844 / 639

Step 3:
The number 639 fits into 844 1 times, leaving a remainder of 205.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 639 from 844 and we're left with 205.
Fetch the next digit (6) from the dividend, attach it to 205 and continue: 2056 / 639

Advancing to step 4:
639 can be fit into 2056 3 times, resulting in a remainder of 139.
The next digit of our result is 3. 
Result so far: 13.0
Subtract 1917 from 2056 to get 139.
Append the next digit (3) from the dividend to 139 and continue with: 1393 / 639

On to step 5:
When dividing 1393 by 639, we get 2 with a remainder of 115.
Put 2 as the next digit of the answer. 
Result so far: 132.0
Subtracting 1278 from 1393 leaves us with 115.
Take the next digit (8) from the dividend and append it to 115, then repeat: 1158 / 639

Moving on to step 6:
The number 639 fits into 1158 1 times, leaving a remainder of 519.
Use 1 as the next digit of our solution. 
Result so far: 1321.0
Subtract 639 from 1158 to get 519.
Take the next digit (7) from the dividend and append it to 519, then repeat: 5197 / 639

Step 7:
If we divide 5197 by 639, we get 8 and a remainder of 85.
Record the quotient 8 as the next digit in the result. 
Result so far: 13218.0
Deduct 5112 from 5197 and we're left with 85.
Take the next digit (2) from the dividend and append it to 85, then repeat: 852 / 639

On to step 8:
639 goes into 852 1 times with a remainder of 213.
Put 1 as the next digit of the answer. 
Result so far: 132181.0
Subtract 639 from 852 to get 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Step 9:
2130 divided by 639 is 3 with a remainder of 213.
Use 3 as the next digit of our solution. 
Result so far: 132181.3
Subtracting 1917 from 2130 leaves us with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

On to step 10:
639 goes into 2130 3 times with a remainder of 213.
The next digit of our result is 3. 
Result so far: 132181.33
If we take 1917 away from 2130, we end up with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

The quotient of the division is 132181.33, and the remainder is 0.213.