We divide 537643 by 42
We want to figure out the number of times 537643 can be divided by 42.

Let's proceed to step 1:
If we divide 5 by 42, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 42

Advancing to step 2:
If we divide 53 by 42, we get 1 and a remainder of 11.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 42 from 53, we get 11.
Include the next digit (7) from the dividend after 11, then repeat: 117 / 42

Step 3:
The number 42 fits into 117 2 times, leaving a remainder of 33.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 84 from 117 to get 33.
Include the next digit (6) from the dividend after 33, then repeat: 336 / 42

Moving on to step 4:
When dividing 336 by 42, we get 8 with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 128.0
Deduct 336 from 336 and we're left with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 42

Advancing to step 5:
When dividing 4 by 42, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 1280.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 42

Advancing to step 6:
42 goes into 43 1 times with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 12801.0
If we subtract 42 from 43, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
10 divided by 42 is 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 12801.0
If we take 0 away from 10, 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.

Going ahead to step 8:
When dividing 100 by 42, we get 2 with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 12801.02
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.

Let's proceed to step 9:
42 can be fit into 160 3 times, resulting in a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 12801.023
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.

Moving on to step 10:
42 can be fit into 340 8 times, resulting in a remainder of 4.
The next digit of our result is 8. 
Result so far: 12801.0238
Subtracting 336 from 340 leaves us 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.

Step 11:
42 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 12801.0238
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 12:
400 divided by 42 is 9 with a remainder of 22.
Put 9 as the next digit of the answer. 
Result so far: 12801.023809
If we subtract 378 from 400, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 13:
When dividing 220 by 42, we get 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 12801.0238095
Subtracting 210 from 220 leaves us 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.

On to step 14:
100 divided by 42 is 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 12801.02380952
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 result is 12801.02380952 with a remainder of 1.6e-08.