We're dividing 640954 by 5 
We want to divide 640954 by 5.

On to step 1:
If we divide 6 by 5, we get 1 and a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 5 from 6 and we're left with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 5

Moving on to step 2:
If we divide 14 by 5, we get 2 and a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
If we subtract 10 from 14, we get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 5

On to step 3:
If we divide 40 by 5, we get 8 and a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 128.0
If we subtract 40 from 40, we get 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 5

Moving on to step 4:
5 can be fit into 9 1 times, resulting in a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1281.0
Subtract 5 from 9 to get 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 5

Moving on to step 5:
45 divided by 5 is 9 with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 12819.0
The remainder is 0 after subtracting 45 from 45.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 5

Advancing to step 6:
When dividing 4 by 5, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 128190.0
Subtracting 0 from 4 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
If we divide 40 by 5, we get 8 and a remainder of 0.
The next digit of our result is 8. 
Result so far: 128190.8
Subtracting 40 from 40 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
The number 5 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 128190.8
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
5 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 128190.8
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 128190.8 with a balance of 0.0.