We look at the division of 42189646 by 627 
We're looking to find how many times 627 goes into 42189646.

On to step 1:
The number 627 fits into 4 0 times, leaving 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.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 627

Step 2:
The number 627 fits into 42 0 times, leaving a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Take the next digit (1) from the dividend and append it to 42, then repeat: 421 / 627

Going ahead to step 3:
If we divide 421 by 627, we get 0 and a remainder of 421.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 421 after subtracting 0 from 421.
Take the next digit (8) from the dividend and append it to 421, then repeat: 4218 / 627

Moving on to step 4:
If we divide 4218 by 627, we get 6 and a remainder of 456.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 3762 from 4218 leaves us with 456.
Bring next digit (9) of the dividend behind the 456 and repeat the process: 4569 / 627

On to step 5:
4569 divided by 627 is 7 with a remainder of 180.
Use 7 as the next digit of our solution. 
Result so far: 67.0
Subtracting 4389 from 4569 leaves us with 180.
Append the next digit (6) from the dividend to 180 and continue with: 1806 / 627

Advancing to step 6:
627 can be fit into 1806 2 times, resulting in a remainder of 552.
Write down 2 as next digit of the result. 
Result so far: 672.0
The remainder is 552 after subtracting 1254 from 1806.
Bring next digit (4) of the dividend behind the 552 and repeat the process: 5524 / 627

Going ahead to step 7:
5524 divided by 627 is 8 with a remainder of 508.
The number 8 becomes the next digit in our result. 
Result so far: 6728.0
Subtracting 5016 from 5524 leaves us with 508.
Append the next digit (6) from the dividend to 508 and continue with: 5086 / 627

On to step 8:
627 goes into 5086 8 times with a remainder of 70.
Write down 8 as next digit of the result. 
Result so far: 67288.0
Subtracting 5016 from 5086 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 9:
The number 627 fits into 700 1 times, leaving a remainder of 73.
The number 1 becomes the next digit in our result. 
Result so far: 67288.1
If we subtract 627 from 700, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Let's proceed to step 10:
627 can be fit into 730 1 times, resulting in a remainder of 103.
Write down 1 as next digit of the result. 
Result so far: 67288.11
Deduct 627 from 730 and we're left with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

The final result is 67288.11 with a remainder of 0.103.