We look at the division of 4027212 by 486 
We want to divide 4027212 by 486.

On to step 1:
When dividing 4 by 486, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 486

Let's proceed to step 2:
486 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Take the next digit (2) from the dividend and append it to 40, then repeat: 402 / 486

Step 3:
When dividing 402 by 486, we get 0 with a remainder of 402.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 402, we end up with 402.
Grab the next digit (7) from the dividend, add it to 402, then carry on: 4027 / 486

Advancing to step 4:
4027 divided by 486 is 8 with a remainder of 139.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we subtract 3888 from 4027, we get 139.
Grab the next digit (2) from the dividend, add it to 139, then carry on: 1392 / 486

Advancing to step 5:
486 can be fit into 1392 2 times, resulting in a remainder of 420.
The number 2 becomes the next digit in our result. 
Result so far: 82.0
If we take 972 away from 1392, we end up with 420.
Fetch the next digit (1) from the dividend, attach it to 420 and continue: 4201 / 486

Moving on to step 6:
If we divide 4201 by 486, we get 8 and a remainder of 313.
Write down 8 as next digit of the result. 
Result so far: 828.0
If we subtract 3888 from 4201, we get 313.
Include the next digit (2) from the dividend after 313, then repeat: 3132 / 486

On to step 7:
When dividing 3132 by 486, we get 6 with a remainder of 216.
Record the quotient 6 as the next digit in the result. 
Result so far: 8286.0
If we take 2916 away from 3132, we end up with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

On to step 8:
486 goes into 2160 4 times with a remainder of 216.
The number 4 becomes the next digit in our result. 
Result so far: 8286.4
Subtract 1944 from 2160 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Step 9:
When dividing 2160 by 486, we get 4 with a remainder of 216.
Put 4 as the next digit of the answer. 
Result so far: 8286.44
Subtract 1944 from 2160 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

The final outcome is 8286.44, with a leftover of 0.216.