162521 ÷ 4 
Let's see how many times 4 fits into 162521.

On to step 1:
If we divide 1 by 4, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 4

Step 2:
4 goes into 16 4 times with a remainder of 0.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 16 from 16 to get 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 4

Advancing to step 3:
The number 4 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 40.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 4

Going ahead to step 4:
4 can be fit into 25 6 times, resulting in a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 406.0
If we subtract 24 from 25, we get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 4

Going ahead to step 5:
When dividing 12 by 4, we get 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 4063.0
Subtracting 12 from 12 leaves us with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 4

Let's proceed to step 6:
4 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 40630.0
Subtract 0 from 1 to get 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.
Record the quotient 2 as the next digit in the result. 
Result so far: 40630.2
Deduct 8 from 10 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
4 goes into 20 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 40630.25
Subtracting 20 from 20 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.

Step 9:
0 divided by 4 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 40630.25
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.

On to step 10:
4 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 40630.25
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.

After the division, we end up with 40630.25 and a remainder of 0.0.