425378 ÷ 42 
We want to figure out the number of times 425378 can be divided by 42.

Moving on to step 1:
If we divide 4 by 42, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 42

Advancing to step 2:
When dividing 42 by 42, we get 1 with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 42 from 42 to get 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 42

Advancing to step 3:
If we divide 5 by 42, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 42

Step 4:
The number 42 fits into 53 1 times, leaving a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 101.0
If we subtract 42 from 53, we get 11.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 42

On to step 5:
When dividing 117 by 42, we get 2 with a remainder of 33.
The number 2 becomes the next digit in our result. 
Result so far: 1012.0
Subtract 84 from 117 to get 33.
Grab the next digit (8) from the dividend, add it to 33, then carry on: 338 / 42

Let's proceed to step 6:
338 divided by 42 is 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 10128.0
If we take 336 away from 338, we end up 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.

On to step 7:
The number 42 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 10128.0
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
200 divided by 42 is 4 with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 10128.04
If we take 168 away from 200, we end up with 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 9:
320 divided by 42 is 7 with a remainder of 26.
Write down 7 as next digit of the result. 
Result so far: 10128.047
Deduct 294 from 320 and we're left 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.

On to step 10:
The number 42 fits into 260 6 times, leaving a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 10128.0476
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.

On to step 11:
If we divide 80 by 42, we get 1 and a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 10128.04761
Subtracting 42 from 80 leaves us 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.

Advancing to step 12:
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: 10128.047619
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.

On to step 13:
42 goes into 20 0 times with a remainder of 20.
The next digit of our result is 0. 
Result so far: 10128.047619
Subtract 0 from 20 to get 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 14:
42 goes into 200 4 times with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 10128.04761904
If we take 168 away from 200, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

In conclusion, the division gives 10128.04761904 with a balance of 3.2e-08.