Let's divide 142521 by 22
Our goal is to divide 142521 by 22.

Advancing to step 1:
22 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 22

Moving on to step 2:
When dividing 14 by 22, we get 0 with a remainder of 14.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 14 leaves us with 14.
Append the next digit (2) from the dividend to 14 and continue with: 142 / 22

Going ahead to step 3:
If we divide 142 by 22, we get 6 and a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 132 from 142, we get 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 22

Step 4:
105 divided by 22 is 4 with a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 64.0
If we take 88 away from 105, we end up with 17.
Bring next digit (2) of the dividend behind the 17 and repeat the process: 172 / 22

Going ahead to step 5:
When dividing 172 by 22, we get 7 with a remainder of 18.
Write down 7 as next digit of the result. 
Result so far: 647.0
Subtracting 154 from 172 leaves us with 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 22

Advancing to step 6:
If we divide 181 by 22, we get 8 and a remainder of 5.
Record the quotient 8 as the next digit in the result. 
Result so far: 6478.0
Subtracting 176 from 181 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
When dividing 50 by 22, we get 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 6478.2
The remainder is 6 after subtracting 44 from 50.
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 8:
60 divided by 22 is 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 6478.22
Subtracting 44 from 60 leaves us 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 6478.22, with a leftover of 0.016.