We look at the division of 42507498 by 124 
Let's see how many times 124 fits into 42507498.

Step 1:
124 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 124

On to step 2:
124 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 (5) from the dividend and append it to 42, then repeat: 425 / 124

Let's proceed to step 3:
425 divided by 124 is 3 with a remainder of 53.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 372 from 425, we get 53.
Append the next digit (0) from the dividend to 53 and continue with: 530 / 124

On to step 4:
The number 124 fits into 530 4 times, leaving a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 34.0
Subtract 496 from 530 to get 34.
Append the next digit (7) from the dividend to 34 and continue with: 347 / 124

On to step 5:
124 can be fit into 347 2 times, resulting in a remainder of 99.
The number 2 becomes the next digit in our result. 
Result so far: 342.0
Deduct 248 from 347 and we're left with 99.
Append the next digit (4) from the dividend to 99 and continue with: 994 / 124

Let's proceed to step 6:
124 can be fit into 994 8 times, resulting in a remainder of 2.
The next digit of our result is 8. 
Result so far: 3428.0
Deduct 992 from 994 and we're left with 2.
Grab the next digit (9) from the dividend, add it to 2, then carry on: 29 / 124

Let's proceed to step 7:
If we divide 29 by 124, we get 0 and a remainder of 29.
Use 0 as the next digit of our solution. 
Result so far: 34280.0
If we take 0 away from 29, we end up with 29.
Take the next digit (8) from the dividend and append it to 29, then repeat: 298 / 124

Moving on to step 8:
The number 124 fits into 298 2 times, leaving a remainder of 50.
The next digit of our result is 2. 
Result so far: 342802.0
Subtract 248 from 298 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
124 can be fit into 500 4 times, resulting in a remainder of 4.
The next digit of our result is 4. 
Result so far: 342802.4
If we take 496 away from 500, we end up 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.

Let's proceed to step 10:
The number 124 fits into 40 0 times, leaving a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 342802.4
If we subtract 0 from 40, we 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.

Advancing to step 11:
124 can be fit into 400 3 times, resulting in a remainder of 28.
Write down 3 as next digit of the result. 
Result so far: 342802.403
Subtract 372 from 400 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 12:
When dividing 280 by 124, we get 2 with a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 342802.4032
The remainder is 32 after subtracting 248 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 13:
320 divided by 124 is 2 with a remainder of 72.
Put 2 as the next digit of the answer. 
Result so far: 342802.40322
If we subtract 248 from 320, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 342802.40322 with a remainder of 7.2e-05.