Let's divide 42830109 by 642
We want to figure out the number of times 42830109 can be divided by 642.

Going ahead to step 1:
642 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
The remainder is 4 after subtracting 0 from 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 642

Going ahead to step 2:
642 can be fit into 42 0 times, resulting in a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Take the next digit (8) from the dividend and append it to 42, then repeat: 428 / 642

Let's proceed to step 3:
428 divided by 642 is 0 with a remainder of 428.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 428 leaves us with 428.
Take the next digit (3) from the dividend and append it to 428, then repeat: 4283 / 642

Let's proceed to step 4:
642 goes into 4283 6 times with a remainder of 431.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
The remainder is 431 after subtracting 3852 from 4283.
Fetch the next digit (0) from the dividend, attach it to 431 and continue: 4310 / 642

Going ahead to step 5:
642 goes into 4310 6 times with a remainder of 458.
Record the quotient 6 as the next digit in the result. 
Result so far: 66.0
If we take 3852 away from 4310, we end up with 458.
Bring next digit (1) of the dividend behind the 458 and repeat the process: 4581 / 642

Moving on to step 6:
642 goes into 4581 7 times with a remainder of 87.
The next digit of our result is 7. 
Result so far: 667.0
If we take 4494 away from 4581, we end up with 87.
Fetch the next digit (0) from the dividend, attach it to 87 and continue: 870 / 642

Advancing to step 7:
When dividing 870 by 642, we get 1 with a remainder of 228.
The next digit of our result is 1. 
Result so far: 6671.0
Subtracting 642 from 870 leaves us with 228.
Take the next digit (9) from the dividend and append it to 228, then repeat: 2289 / 642

Step 8:
2289 divided by 642 is 3 with a remainder of 363.
Use 3 as the next digit of our solution. 
Result so far: 66713.0
If we take 1926 away from 2289, we end up with 363.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3630, and continue the process.

Let's proceed to step 9:
If we divide 3630 by 642, we get 5 and a remainder of 420.
Record the quotient 5 as the next digit in the result. 
Result so far: 66713.5
Subtract 3210 from 3630 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 10:
4200 divided by 642 is 6 with a remainder of 348.
Put 6 as the next digit of the answer. 
Result so far: 66713.56
Subtract 3852 from 4200 to get 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Going ahead to step 11:
3480 divided by 642 is 5 with a remainder of 270.
Put 5 as the next digit of the answer. 
Result so far: 66713.565
Subtracting 3210 from 3480 leaves us with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Moving on to step 12:
642 can be fit into 2700 4 times, resulting in a remainder of 132.
The next digit of our result is 4. 
Result so far: 66713.5654
Subtract 2568 from 2700 to get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Advancing to step 13:
1320 divided by 642 is 2 with a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 66713.56542
Subtract 1284 from 1320 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 14:
642 goes into 360 0 times with a remainder of 360.
The number 0 becomes the next digit in our result. 
Result so far: 66713.56542
Subtract 0 from 360 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 15:
The number 642 fits into 3600 5 times, leaving a remainder of 390.
Put 5 as the next digit of the answer. 
Result so far: 66713.5654205
The remainder is 390 after subtracting 3210 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Advancing to step 16:
The number 642 fits into 3900 6 times, leaving a remainder of 48.
The next digit of our result is 6. 
Result so far: 66713.56542056
If we subtract 3852 from 3900, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

In conclusion, the division gives 66713.56542056 with a balance of 4.8e-08.