745210 ÷ 42 
Our goal is to divide 745210 by 42.

Moving on to step 1:
The number 42 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 42

Going ahead to step 2:
When dividing 74 by 42, we get 1 with a remainder of 32.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 42 from 74 and we're left with 32.
Fetch the next digit (5) from the dividend, attach it to 32 and continue: 325 / 42

Step 3:
The number 42 fits into 325 7 times, leaving a remainder of 31.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we take 294 away from 325, we end up with 31.
Fetch the next digit (2) from the dividend, attach it to 31 and continue: 312 / 42

Step 4:
When dividing 312 by 42, we get 7 with a remainder of 18.
Write down 7 as next digit of the result. 
Result so far: 177.0
The remainder is 18 after subtracting 294 from 312.
Fetch the next digit (1) from the dividend, attach it to 18 and continue: 181 / 42

Moving on to step 5:
If we divide 181 by 42, we get 4 and a remainder of 13.
Record the quotient 4 as the next digit in the result. 
Result so far: 1774.0
Deduct 168 from 181 and we're left with 13.
Include the next digit (0) from the dividend after 13, then repeat: 130 / 42

Going ahead to step 6:
42 can be fit into 130 3 times, resulting in a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 17743.0
Subtract 126 from 130 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
42 can be fit into 40 0 times, resulting in a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 17743.0
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 8:
When dividing 400 by 42, we get 9 with a remainder of 22.
The next digit of our result is 9. 
Result so far: 17743.09
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.

Step 9:
If we divide 220 by 42, we get 5 and a remainder of 10.
The next digit of our result is 5. 
Result so far: 17743.095
If we take 210 away from 220, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
42 goes into 100 2 times with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 17743.0952
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 11:
When dividing 160 by 42, we get 3 with a remainder of 34.
The next digit of our result is 3. 
Result so far: 17743.09523
If we take 126 away from 160, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 12:
When dividing 340 by 42, we get 8 with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 17743.095238
Deduct 336 from 340 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 13:
When dividing 40 by 42, we get 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 17743.095238
Subtracting 0 from 40 leaves us 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.

Step 14:
42 goes into 400 9 times with a remainder of 22.
The next digit of our result is 9. 
Result so far: 17743.09523809
Subtracting 378 from 400 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

After the division, we end up with 17743.09523809 and a remainder of 2.2e-08.