We look at the division of 164378 by 42 
We want to divide 164378 by 42.

Advancing to step 1:
If we divide 1 by 42, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 42

Let's proceed to step 2:
If we divide 16 by 42, we get 0 and a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 16 and we're left with 16.
Include the next digit (4) from the dividend after 16, then repeat: 164 / 42

Moving on to step 3:
164 divided by 42 is 3 with a remainder of 38.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 126 from 164 to get 38.
Take the next digit (3) from the dividend and append it to 38, then repeat: 383 / 42

Going ahead to step 4:
If we divide 383 by 42, we get 9 and a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
The remainder is 5 after subtracting 378 from 383.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 42

Step 5:
42 goes into 57 1 times with a remainder of 15.
The next digit of our result is 1. 
Result so far: 391.0
If we take 42 away from 57, we end up with 15.
Grab the next digit (8) from the dividend, add it to 15, then carry on: 158 / 42

Going ahead to step 6:
42 goes into 158 3 times with a remainder of 32.
Record the quotient 3 as the next digit in the result. 
Result so far: 3913.0
Subtract 126 from 158 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 7:
If we divide 320 by 42, we get 7 and a remainder of 26.
Write down 7 as next digit of the result. 
Result so far: 3913.7
If we take 294 away from 320, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 8:
If we divide 260 by 42, we get 6 and a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 3913.76
Subtracting 252 from 260 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 9:
42 can be fit into 80 1 times, resulting in a remainder of 38.
Put 1 as the next digit of the answer. 
Result so far: 3913.761
Deduct 42 from 80 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 10:
If we divide 380 by 42, we get 9 and a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 3913.7619
Deduct 378 from 380 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.

Step 11:
If we divide 20 by 42, we get 0 and a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 3913.7619
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 12:
If we divide 200 by 42, we get 4 and a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 3913.761904
If we subtract 168 from 200, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 13:
If we divide 320 by 42, we get 7 and a remainder of 26.
Write down 7 as next digit of the result. 
Result so far: 3913.7619047
Subtract 294 from 320 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 14:
When dividing 260 by 42, we get 6 with a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 3913.76190476
Subtract 252 from 260 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 3913.76190476 with a remainder of 8e-09.