We look at the division of 42406818 by 869 
Let's see how many times 869 fits into 42406818.

On to step 1:
4 divided by 869 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
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 / 869

Step 2:
If we divide 42 by 869, we get 0 and a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Fetch the next digit (4) from the dividend, attach it to 42 and continue: 424 / 869

Moving on to step 3:
424 divided by 869 is 0 with a remainder of 424.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 424 and we're left with 424.
Fetch the next digit (0) from the dividend, attach it to 424 and continue: 4240 / 869

Moving on to step 4:
869 can be fit into 4240 4 times, resulting in a remainder of 764.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 3476 from 4240, we get 764.
Fetch the next digit (6) from the dividend, attach it to 764 and continue: 7646 / 869

Step 5:
The number 869 fits into 7646 8 times, leaving a remainder of 694.
The next digit of our result is 8. 
Result so far: 48.0
If we subtract 6952 from 7646, we get 694.
Fetch the next digit (8) from the dividend, attach it to 694 and continue: 6948 / 869

On to step 6:
The number 869 fits into 6948 7 times, leaving a remainder of 865.
The next digit of our result is 7. 
Result so far: 487.0
Subtract 6083 from 6948 to get 865.
Grab the next digit (1) from the dividend, add it to 865, then carry on: 8651 / 869

Moving on to step 7:
869 goes into 8651 9 times with a remainder of 830.
The next digit of our result is 9. 
Result so far: 4879.0
If we subtract 7821 from 8651, we get 830.
Fetch the next digit (8) from the dividend, attach it to 830 and continue: 8308 / 869

Moving on to step 8:
The number 869 fits into 8308 9 times, leaving a remainder of 487.
Record the quotient 9 as the next digit in the result. 
Result so far: 48799.0
Subtract 7821 from 8308 to get 487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4870, and continue the process.

Moving on to step 9:
The number 869 fits into 4870 5 times, leaving a remainder of 525.
Write down 5 as next digit of the result. 
Result so far: 48799.5
If we subtract 4345 from 4870, we get 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Going ahead to step 10:
If we divide 5250 by 869, we get 6 and a remainder of 36.
Record the quotient 6 as the next digit in the result. 
Result so far: 48799.56
Deduct 5214 from 5250 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 11:
If we divide 360 by 869, we get 0 and a remainder of 360.
Use 0 as the next digit of our solution. 
Result so far: 48799.56
If we subtract 0 from 360, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 12:
869 goes into 3600 4 times with a remainder of 124.
Write down 4 as next digit of the result. 
Result so far: 48799.5604
If we take 3476 away from 3600, we end up with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Advancing to step 13:
When dividing 1240 by 869, we get 1 with a remainder of 371.
The number 1 becomes the next digit in our result. 
Result so far: 48799.56041
The remainder is 371 after subtracting 869 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

On to step 14:
869 goes into 3710 4 times with a remainder of 234.
The next digit of our result is 4. 
Result so far: 48799.560414
Subtracting 3476 from 3710 leaves us with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Advancing to step 15:
If we divide 2340 by 869, we get 2 and a remainder of 602.
The next digit of our result is 2. 
Result so far: 48799.5604142
The remainder is 602 after subtracting 1738 from 2340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Moving on to step 16:
If we divide 6020 by 869, we get 6 and a remainder of 806.
The number 6 becomes the next digit in our result. 
Result so far: 48799.56041426
Subtracting 5214 from 6020 leaves us with 806.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8060, and continue the process.

The final result is 48799.56041426 with a remainder of 8.06e-07.