We look at the division of 671203 by 42 
We want to figure out the number of times 671203 can be divided by 42.

On to step 1:
When dividing 6 by 42, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 42

On to step 2:
If we divide 67 by 42, we get 1 and a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 42 from 67, we get 25.
Grab the next digit (1) from the dividend, add it to 25, then carry on: 251 / 42

Moving on to step 3:
The number 42 fits into 251 5 times, leaving a remainder of 41.
Write down 5 as next digit of the result. 
Result so far: 15.0
If we subtract 210 from 251, we get 41.
Grab the next digit (2) from the dividend, add it to 41, then carry on: 412 / 42

Advancing to step 4:
If we divide 412 by 42, we get 9 and a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 159.0
The remainder is 34 after subtracting 378 from 412.
Bring next digit (0) of the dividend behind the 34 and repeat the process: 340 / 42

Going ahead to step 5:
42 goes into 340 8 times with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 1598.0
If we subtract 336 from 340, we get 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 42

Going ahead to step 6:
43 divided by 42 is 1 with a remainder of 1.
The next digit of our result is 1. 
Result so far: 15981.0
Deduct 42 from 43 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.

Going ahead to step 7:
42 can be fit into 10 0 times, resulting in a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 15981.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
42 goes into 100 2 times with a remainder of 16.
The next digit of our result is 2. 
Result so far: 15981.02
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 9:
When dividing 160 by 42, we get 3 with a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 15981.023
If we subtract 126 from 160, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 10:
42 goes into 340 8 times with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 15981.0238
The remainder is 4 after subtracting 336 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 11:
The number 42 fits into 40 0 times, leaving a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 15981.0238
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 12:
42 can be fit into 400 9 times, resulting in a remainder of 22.
Use 9 as the next digit of our solution. 
Result so far: 15981.023809
The remainder is 22 after subtracting 378 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 13:
220 divided by 42 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 15981.0238095
If we subtract 210 from 220, we get 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 14:
100 divided by 42 is 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 15981.02380952
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 15981.02380952, with a leftover of 1.6e-08.