We're dividing 640375 by 48 
We want to figure out the number of times 640375 can be divided by 48.

Advancing to step 1:
When dividing 6 by 48, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 48

Going ahead to step 2:
48 goes into 64 1 times with a remainder of 16.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 48 from 64, we get 16.
Bring next digit (0) of the dividend behind the 16 and repeat the process: 160 / 48

Step 3:
48 goes into 160 3 times with a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we subtract 144 from 160, we get 16.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 48

Moving on to step 4:
When dividing 163 by 48, we get 3 with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 133.0
The remainder is 19 after subtracting 144 from 163.
Fetch the next digit (7) from the dividend, attach it to 19 and continue: 197 / 48

Step 5:
48 goes into 197 4 times with a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 1334.0
Subtract 192 from 197 to get 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 48

Going ahead to step 6:
55 divided by 48 is 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 13341.0
Subtract 48 from 55 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
48 goes into 70 1 times with a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 13341.1
If we take 48 away from 70, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 8:
220 divided by 48 is 4 with a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 13341.14
The remainder is 28 after subtracting 192 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 9:
If we divide 280 by 48, we get 5 and a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 13341.145
If we take 240 away from 280, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
If we divide 400 by 48, we get 8 and a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 13341.1458
Deduct 384 from 400 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 11:
The number 48 fits into 160 3 times, leaving a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 13341.14583
Subtract 144 from 160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 12:
If we divide 160 by 48, we get 3 and a remainder of 16.
Use 3 as the next digit of our solution. 
Result so far: 13341.145833
Deduct 144 from 160 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 13341.145833, with a leftover of 1.6e-06.