123146 ÷ 42 
Let's see how many times 42 fits into 123146.

Let's proceed to step 1:
1 divided by 42 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 42

Let's proceed to step 2:
12 divided by 42 is 0 with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Grab the next digit (3) from the dividend, add it to 12, then carry on: 123 / 42

Step 3:
123 divided by 42 is 2 with a remainder of 39.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 84 from 123 leaves us with 39.
Take the next digit (1) from the dividend and append it to 39, then repeat: 391 / 42

Going ahead to step 4:
If we divide 391 by 42, we get 9 and a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 29.0
If we subtract 378 from 391, we get 13.
Bring next digit (4) of the dividend behind the 13 and repeat the process: 134 / 42

Going ahead to step 5:
134 divided by 42 is 3 with a remainder of 8.
Record the quotient 3 as the next digit in the result. 
Result so far: 293.0
The remainder is 8 after subtracting 126 from 134.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 42

Going ahead to step 6:
42 goes into 86 2 times with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 2932.0
Subtracting 84 from 86 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
If we divide 20 by 42, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 2932.0
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
200 divided by 42 is 4 with a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 2932.04
If we subtract 168 from 200, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 9:
42 goes into 320 7 times with a remainder of 26.
Use 7 as the next digit of our solution. 
Result so far: 2932.047
If we subtract 294 from 320, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 10:
260 divided by 42 is 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 2932.0476
The remainder is 8 after subtracting 252 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 11:
42 goes into 80 1 times with a remainder of 38.
Record the quotient 1 as the next digit in the result. 
Result so far: 2932.04761
Subtract 42 from 80 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 12:
42 can be fit into 380 9 times, resulting in a remainder of 2.
The next digit of our result is 9. 
Result so far: 2932.047619
Subtract 378 from 380 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 13:
42 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 2932.047619
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 14:
42 goes into 200 4 times with a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 2932.04761904
If we take 168 away from 200, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Our division results in 2932.04761904 with a remaining 3.2e-08.