645479 divided by 42 
We want to figure out the number of times 645479 can be divided by 42.

Moving on to step 1:
The number 42 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 42

Step 2:
64 divided by 42 is 1 with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 42 from 64 and we're left with 22.
Append the next digit (5) from the dividend to 22 and continue with: 225 / 42

Moving on to step 3:
225 divided by 42 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 15.0
If we subtract 210 from 225, we get 15.
Bring next digit (4) of the dividend behind the 15 and repeat the process: 154 / 42

Going ahead to step 4:
When dividing 154 by 42, we get 3 with a remainder of 28.
Write down 3 as next digit of the result. 
Result so far: 153.0
Deduct 126 from 154 and we're left with 28.
Include the next digit (7) from the dividend after 28, then repeat: 287 / 42

Let's proceed to step 5:
If we divide 287 by 42, we get 6 and a remainder of 35.
Use 6 as the next digit of our solution. 
Result so far: 1536.0
Subtract 252 from 287 to get 35.
Fetch the next digit (9) from the dividend, attach it to 35 and continue: 359 / 42

On to step 6:
42 goes into 359 8 times with a remainder of 23.
Record the quotient 8 as the next digit in the result. 
Result so far: 15368.0
Deduct 336 from 359 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 7:
The number 42 fits into 230 5 times, leaving a remainder of 20.
The next digit of our result is 5. 
Result so far: 15368.5
Subtracting 210 from 230 leaves us 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.

Going ahead to step 8:
When dividing 200 by 42, we get 4 with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 15368.54
The remainder is 32 after subtracting 168 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 9:
42 can be fit into 320 7 times, resulting in a remainder of 26.
Use 7 as the next digit of our solution. 
Result so far: 15368.547
Subtract 294 from 320 to 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.

Going ahead to step 10:
If we divide 260 by 42, we get 6 and a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 15368.5476
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.

Step 11:
42 can be fit into 80 1 times, resulting in a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 15368.54761
The remainder is 38 after subtracting 42 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 12:
380 divided by 42 is 9 with a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 15368.547619
The remainder is 2 after subtracting 378 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 13:
When dividing 20 by 42, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 15368.547619
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.

Advancing to step 14:
The number 42 fits into 200 4 times, leaving a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 15368.54761904
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.

The quotient of the division is 15368.54761904, and the remainder is 3.2e-08.