We look at the division of 42407470 by 254 
We want to figure out the number of times 42407470 can be divided by 254.

Moving on to step 1:
254 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 254

Moving on to step 2:
When dividing 42 by 254, we get 0 with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Take the next digit (4) from the dividend and append it to 42, then repeat: 424 / 254

Advancing to step 3:
If we divide 424 by 254, we get 1 and a remainder of 170.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 254 from 424 to get 170.
Bring next digit (0) of the dividend behind the 170 and repeat the process: 1700 / 254

Advancing to step 4:
254 goes into 1700 6 times with a remainder of 176.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
If we subtract 1524 from 1700, we get 176.
Append the next digit (7) from the dividend to 176 and continue with: 1767 / 254

On to step 5:
When dividing 1767 by 254, we get 6 with a remainder of 243.
Use 6 as the next digit of our solution. 
Result so far: 166.0
The remainder is 243 after subtracting 1524 from 1767.
Include the next digit (4) from the dividend after 243, then repeat: 2434 / 254

Advancing to step 6:
When dividing 2434 by 254, we get 9 with a remainder of 148.
Use 9 as the next digit of our solution. 
Result so far: 1669.0
The remainder is 148 after subtracting 2286 from 2434.
Bring next digit (7) of the dividend behind the 148 and repeat the process: 1487 / 254

On to step 7:
1487 divided by 254 is 5 with a remainder of 217.
Write down 5 as next digit of the result. 
Result so far: 16695.0
If we subtract 1270 from 1487, we get 217.
Fetch the next digit (0) from the dividend, attach it to 217 and continue: 2170 / 254

Let's proceed to step 8:
254 can be fit into 2170 8 times, resulting in a remainder of 138.
Write down 8 as next digit of the result. 
Result so far: 166958.0
The remainder is 138 after subtracting 2032 from 2170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Moving on to step 9:
1380 divided by 254 is 5 with a remainder of 110.
Use 5 as the next digit of our solution. 
Result so far: 166958.5
If we take 1270 away from 1380, we end up with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 10:
The number 254 fits into 1100 4 times, leaving a remainder of 84.
Put 4 as the next digit of the answer. 
Result so far: 166958.54
The remainder is 84 after subtracting 1016 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 11:
If we divide 840 by 254, we get 3 and a remainder of 78.
The next digit of our result is 3. 
Result so far: 166958.543
The remainder is 78 after subtracting 762 from 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 12:
The number 254 fits into 780 3 times, leaving a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 166958.5433
Deduct 762 from 780 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Our division results in 166958.5433 with a remaining 0.00018.