We look at the division of 42503690 by 279 
We're looking to find how many times 279 goes into 42503690.

Advancing to step 1:
279 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 279

Step 2:
279 can be fit into 42 0 times, resulting in a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Bring next digit (5) of the dividend behind the 42 and repeat the process: 425 / 279

Step 3:
425 divided by 279 is 1 with a remainder of 146.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 279 from 425, we get 146.
Take the next digit (0) from the dividend and append it to 146, then repeat: 1460 / 279

Step 4:
279 can be fit into 1460 5 times, resulting in a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we subtract 1395 from 1460, we get 65.
Grab the next digit (3) from the dividend, add it to 65, then carry on: 653 / 279

Step 5:
279 can be fit into 653 2 times, resulting in a remainder of 95.
Use 2 as the next digit of our solution. 
Result so far: 152.0
The remainder is 95 after subtracting 558 from 653.
Take the next digit (6) from the dividend and append it to 95, then repeat: 956 / 279

On to step 6:
The number 279 fits into 956 3 times, leaving a remainder of 119.
Record the quotient 3 as the next digit in the result. 
Result so far: 1523.0
The remainder is 119 after subtracting 837 from 956.
Fetch the next digit (9) from the dividend, attach it to 119 and continue: 1199 / 279

Going ahead to step 7:
1199 divided by 279 is 4 with a remainder of 83.
Use 4 as the next digit of our solution. 
Result so far: 15234.0
The remainder is 83 after subtracting 1116 from 1199.
Append the next digit (0) from the dividend to 83 and continue with: 830 / 279

Going ahead to step 8:
279 can be fit into 830 2 times, resulting in a remainder of 272.
Put 2 as the next digit of the answer. 
Result so far: 152342.0
If we subtract 558 from 830, we get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Advancing to step 9:
2720 divided by 279 is 9 with a remainder of 209.
Use 9 as the next digit of our solution. 
Result so far: 152342.9
Deduct 2511 from 2720 and we're left with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Going ahead to step 10:
If we divide 2090 by 279, we get 7 and a remainder of 137.
Use 7 as the next digit of our solution. 
Result so far: 152342.97
Deduct 1953 from 2090 and we're left with 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Moving on to step 11:
279 can be fit into 1370 4 times, resulting in a remainder of 254.
Record the quotient 4 as the next digit in the result. 
Result so far: 152342.974
Deduct 1116 from 1370 and we're left with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

On to step 12:
2540 divided by 279 is 9 with a remainder of 29.
Use 9 as the next digit of our solution. 
Result so far: 152342.9749
Deduct 2511 from 2540 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 13:
If we divide 290 by 279, we get 1 and a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 152342.97491
Subtract 279 from 290 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 14:
The number 279 fits into 110 0 times, leaving a remainder of 110.
Write down 0 as next digit of the result. 
Result so far: 152342.97491
Subtract 0 from 110 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Advancing to step 15:
279 can be fit into 1100 3 times, resulting in a remainder of 263.
Put 3 as the next digit of the answer. 
Result so far: 152342.9749103
Subtract 837 from 1100 to get 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Advancing to step 16:
2630 divided by 279 is 9 with a remainder of 119.
Use 9 as the next digit of our solution. 
Result so far: 152342.97491039
Deduct 2511 from 2630 and we're left with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Our division results in 152342.97491039 with a remaining 1.19e-07.