634921 ÷ 4 
Let's see how many times 4 fits into 634921.

Step 1:
4 goes into 6 1 times with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 2 after subtracting 4 from 6.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 4

Going ahead to step 2:
4 can be fit into 23 5 times, resulting in a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we subtract 20 from 23, we get 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 4

Moving on to step 3:
34 divided by 4 is 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 158.0
Deduct 32 from 34 and we're left with 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 4

Step 4:
29 divided by 4 is 7 with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 1587.0
Subtract 28 from 29 to get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 4

Step 5:
When dividing 12 by 4, we get 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 15873.0
Subtract 12 from 12 to get 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 4

Moving on to step 6:
1 divided by 4 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 158730.0
The remainder is 1 after subtracting 0 from 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
If we divide 10 by 4, we get 2 and a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 158730.2
Subtract 8 from 10 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
When dividing 20 by 4, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 158730.25
If we take 20 away from 20, 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.

On to step 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 158730.25
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 10:
4 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 158730.25
Subtracting 0 from 0 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.

The final result is 158730.25 with a remainder of 0.0.