We look at the division of 210456 by 75 
We want to figure out the number of times 210456 can be divided by 75.

Advancing to step 1:
The number 75 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 75

Let's proceed to step 2:
75 goes into 21 0 times with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Append the next digit (0) from the dividend to 21 and continue with: 210 / 75

Step 3:
When dividing 210 by 75, we get 2 with a remainder of 60.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 150 from 210 and we're left with 60.
Include the next digit (4) from the dividend after 60, then repeat: 604 / 75

Moving on to step 4:
75 can be fit into 604 8 times, resulting in a remainder of 4.
The next digit of our result is 8. 
Result so far: 28.0
Subtract 600 from 604 to get 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 75

Let's proceed to step 5:
If we divide 45 by 75, we get 0 and a remainder of 45.
Put 0 as the next digit of the answer. 
Result so far: 280.0
Subtracting 0 from 45 leaves us with 45.
Grab the next digit (6) from the dividend, add it to 45, then carry on: 456 / 75

On to step 6:
If we divide 456 by 75, we get 6 and a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 2806.0
Deduct 450 from 456 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
The number 75 fits into 60 0 times, leaving a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 2806.0
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 8:
75 can be fit into 600 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 2806.08
Subtract 600 from 600 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.

On to step 9:
When dividing 0 by 75, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2806.08
If we take 0 away from 0, we end up 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.

Step 10:
0 divided by 75 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 2806.08
If we take 0 away from 0, we end up 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.

Our division results in 2806.08 with a remaining 0.0.