437985 ÷ 42 
We want to figure out the number of times 437985 can be divided by 42.

Going ahead to step 1:
42 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 42

Moving on to step 2:
42 goes into 43 1 times with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 42 from 43 to get 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 42

On to step 3:
The number 42 fits into 17 0 times, leaving a remainder of 17.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 17 after subtracting 0 from 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 42

Let's proceed to step 4:
42 can be fit into 179 4 times, resulting in a remainder of 11.
The next digit of our result is 4. 
Result so far: 104.0
If we subtract 168 from 179, we get 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 42

Going ahead to step 5:
42 goes into 118 2 times with a remainder of 34.
The next digit of our result is 2. 
Result so far: 1042.0
If we subtract 84 from 118, we get 34.
Include the next digit (5) from the dividend after 34, then repeat: 345 / 42

Going ahead to step 6:
The number 42 fits into 345 8 times, leaving a remainder of 9.
Write down 8 as next digit of the result. 
Result so far: 10428.0
If we take 336 away from 345, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
90 divided by 42 is 2 with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 10428.2
If we take 84 away from 90, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
If we divide 60 by 42, we get 1 and a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 10428.21
Deduct 42 from 60 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 9:
42 can be fit into 180 4 times, resulting in a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 10428.214
Subtract 168 from 180 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 10:
When dividing 120 by 42, we get 2 with a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 10428.2142
If we take 84 away from 120, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 11:
The number 42 fits into 360 8 times, leaving a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 10428.21428
If we subtract 336 from 360, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 12:
42 can be fit into 240 5 times, resulting in a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 10428.214285
If we take 210 away from 240, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 13:
If we divide 300 by 42, we get 7 and a remainder of 6.
The next digit of our result is 7. 
Result so far: 10428.2142857
Subtract 294 from 300 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 14:
42 goes into 60 1 times with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 10428.21428571
If we take 42 away from 60, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 10428.21428571, with a leftover of 1.8e-08.