We divide 661535 by 42
We want to figure out the number of times 661535 can be divided by 42.

On to step 1:
42 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 42

Step 2:
When dividing 66 by 42, we get 1 with a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 42 from 66, we get 24.
Append the next digit (1) from the dividend to 24 and continue with: 241 / 42

Moving on to step 3:
42 can be fit into 241 5 times, resulting in a remainder of 31.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 210 from 241, we get 31.
Append the next digit (5) from the dividend to 31 and continue with: 315 / 42

Step 4:
42 can be fit into 315 7 times, resulting in a remainder of 21.
Record the quotient 7 as the next digit in the result. 
Result so far: 157.0
Subtract 294 from 315 to get 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 42

Let's proceed to step 5:
The number 42 fits into 213 5 times, leaving a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 1575.0
The remainder is 3 after subtracting 210 from 213.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 42

Moving on to step 6:
42 goes into 35 0 times with a remainder of 35.
Record the quotient 0 as the next digit in the result. 
Result so far: 15750.0
Subtracting 0 from 35 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 7:
When dividing 350 by 42, we get 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 15750.8
The remainder is 14 after subtracting 336 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 8:
140 divided by 42 is 3 with a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 15750.83
The remainder is 14 after subtracting 126 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 9:
If we divide 140 by 42, we get 3 and a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 15750.833
Deduct 126 from 140 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Our division results in 15750.833 with a remaining 0.0014.