We're dividing 42472171 by 403 
We want to divide 42472171 by 403.

On to step 1:
When dividing 4 by 403, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 403

Let's proceed to step 2:
When dividing 42 by 403, 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.
Bring next digit (4) of the dividend behind the 42 and repeat the process: 424 / 403

Step 3:
403 goes into 424 1 times with a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 403 from 424 to get 21.
Fetch the next digit (7) from the dividend, attach it to 21 and continue: 217 / 403

Step 4:
217 divided by 403 is 0 with a remainder of 217.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 217, we get 217.
Take the next digit (2) from the dividend and append it to 217, then repeat: 2172 / 403

Step 5:
When dividing 2172 by 403, we get 5 with a remainder of 157.
Put 5 as the next digit of the answer. 
Result so far: 105.0
If we take 2015 away from 2172, we end up with 157.
Append the next digit (1) from the dividend to 157 and continue with: 1571 / 403

Moving on to step 6:
403 can be fit into 1571 3 times, resulting in a remainder of 362.
Write down 3 as next digit of the result. 
Result so far: 1053.0
The remainder is 362 after subtracting 1209 from 1571.
Grab the next digit (7) from the dividend, add it to 362, then carry on: 3627 / 403

Let's proceed to step 7:
When dividing 3627 by 403, we get 9 with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 10539.0
Subtracting 3627 from 3627 leaves us with 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 403

Let's proceed to step 8:
1 divided by 403 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 105390.0
Deduct 0 from 1 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.

Step 9:
403 goes into 10 0 times with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 105390.0
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
The number 403 fits into 100 0 times, leaving a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 105390.0
Subtracting 0 from 100 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The quotient of the division is 105390.0, and the remainder is 0.1.