We look at the division of 442120 by 3 
Our goal is to divide 442120 by 3.

Advancing to step 1:
The number 3 fits into 4 1 times, leaving a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 3 from 4 and we're left with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 3

Step 2:
When dividing 14 by 3, we get 4 with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we take 12 away from 14, we end up with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 3

Let's proceed to step 3:
When dividing 22 by 3, we get 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 147.0
If we subtract 21 from 22, we get 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 3

Going ahead to step 4:
3 goes into 11 3 times with a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 1473.0
Deduct 9 from 11 and we're left with 2.
Include the next digit (2) from the dividend after 2, then repeat: 22 / 3

Advancing to step 5:
22 divided by 3 is 7 with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 14737.0
If we take 21 away from 22, we end up with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 3

Step 6:
10 divided by 3 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 147373.0
If we take 9 away from 10, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
When dividing 10 by 3, we get 3 with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 147373.3
If we take 9 away from 10, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 8:
10 divided by 3 is 3 with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 147373.33
Deduct 9 from 10 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 147373.33, with a leftover of 0.001.