42338890 ÷ 195 
We want to figure out the number of times 42338890 can be divided by 195.

On to step 1:
4 divided by 195 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 195

Step 2:
If we divide 42 by 195, we get 0 and a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Bring next digit (3) of the dividend behind the 42 and repeat the process: 423 / 195

On to step 3:
423 divided by 195 is 2 with a remainder of 33.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 390 from 423 and we're left with 33.
Bring next digit (3) of the dividend behind the 33 and repeat the process: 333 / 195

Moving on to step 4:
The number 195 fits into 333 1 times, leaving a remainder of 138.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
The remainder is 138 after subtracting 195 from 333.
Include the next digit (8) from the dividend after 138, then repeat: 1388 / 195

Going ahead to step 5:
1388 divided by 195 is 7 with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 217.0
If we subtract 1365 from 1388, we get 23.
Include the next digit (8) from the dividend after 23, then repeat: 238 / 195

Moving on to step 6:
When dividing 238 by 195, we get 1 with a remainder of 43.
The next digit of our result is 1. 
Result so far: 2171.0
Subtracting 195 from 238 leaves us with 43.
Fetch the next digit (9) from the dividend, attach it to 43 and continue: 439 / 195

Moving on to step 7:
439 divided by 195 is 2 with a remainder of 49.
Put 2 as the next digit of the answer. 
Result so far: 21712.0
If we subtract 390 from 439, we get 49.
Include the next digit (0) from the dividend after 49, then repeat: 490 / 195

Let's proceed to step 8:
490 divided by 195 is 2 with a remainder of 100.
The number 2 becomes the next digit in our result. 
Result so far: 217122.0
Subtracting 390 from 490 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 9:
If we divide 1000 by 195, we get 5 and a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 217122.5
Subtracting 975 from 1000 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 10:
If we divide 250 by 195, we get 1 and a remainder of 55.
Write down 1 as next digit of the result. 
Result so far: 217122.51
The remainder is 55 after subtracting 195 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 11:
550 divided by 195 is 2 with a remainder of 160.
Put 2 as the next digit of the answer. 
Result so far: 217122.512
If we take 390 away from 550, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 12:
When dividing 1600 by 195, we get 8 with a remainder of 40.
The next digit of our result is 8. 
Result so far: 217122.5128
Subtract 1560 from 1600 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.

Step 13:
When dividing 400 by 195, we get 2 with a remainder of 10.
Put 2 as the next digit of the answer. 
Result so far: 217122.51282
If we subtract 390 from 400, 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.

Advancing to step 14:
100 divided by 195 is 0 with a remainder of 100.
The next digit of our result is 0. 
Result so far: 217122.51282
Deduct 0 from 100 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 15:
If we divide 1000 by 195, we get 5 and a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 217122.5128205
Subtract 975 from 1000 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 16:
The number 195 fits into 250 1 times, leaving a remainder of 55.
Put 1 as the next digit of the answer. 
Result so far: 217122.51282051
Subtracting 195 from 250 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

After the division, we end up with 217122.51282051 and a remainder of 5.5e-08.