We're dividing 90139027 by 308 
We want to figure out the number of times 90139027 can be divided by 308.

On to step 1:
The number 308 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 308

Moving on to step 2:
If we divide 90 by 308, we get 0 and a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 90 to get 90.
Append the next digit (1) from the dividend to 90 and continue with: 901 / 308

Step 3:
308 can be fit into 901 2 times, resulting in a remainder of 285.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 616 from 901, we get 285.
Grab the next digit (3) from the dividend, add it to 285, then carry on: 2853 / 308

Let's proceed to step 4:
If we divide 2853 by 308, we get 9 and a remainder of 81.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
Deduct 2772 from 2853 and we're left with 81.
Take the next digit (9) from the dividend and append it to 81, then repeat: 819 / 308

On to step 5:
If we divide 819 by 308, we get 2 and a remainder of 203.
Use 2 as the next digit of our solution. 
Result so far: 292.0
The remainder is 203 after subtracting 616 from 819.
Include the next digit (0) from the dividend after 203, then repeat: 2030 / 308

Moving on to step 6:
When dividing 2030 by 308, we get 6 with a remainder of 182.
The next digit of our result is 6. 
Result so far: 2926.0
Subtract 1848 from 2030 to get 182.
Take the next digit (2) from the dividend and append it to 182, then repeat: 1822 / 308

Advancing to step 7:
When dividing 1822 by 308, we get 5 with a remainder of 282.
Record the quotient 5 as the next digit in the result. 
Result so far: 29265.0
Deduct 1540 from 1822 and we're left with 282.
Bring next digit (7) of the dividend behind the 282 and repeat the process: 2827 / 308

On to step 8:
If we divide 2827 by 308, we get 9 and a remainder of 55.
Record the quotient 9 as the next digit in the result. 
Result so far: 292659.0
If we subtract 2772 from 2827, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 9:
The number 308 fits into 550 1 times, leaving a remainder of 242.
Use 1 as the next digit of our solution. 
Result so far: 292659.1
Subtracting 308 from 550 leaves us with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

On to step 10:
When dividing 2420 by 308, we get 7 with a remainder of 264.
Put 7 as the next digit of the answer. 
Result so far: 292659.17
If we subtract 2156 from 2420, we get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

Moving on to step 11:
308 goes into 2640 8 times with a remainder of 176.
Write down 8 as next digit of the result. 
Result so far: 292659.178
If we take 2464 away from 2640, we end up with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 12:
308 goes into 1760 5 times with a remainder of 220.
The number 5 becomes the next digit in our result. 
Result so far: 292659.1785
Deduct 1540 from 1760 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 13:
When dividing 2200 by 308, we get 7 with a remainder of 44.
Use 7 as the next digit of our solution. 
Result so far: 292659.17857
The remainder is 44 after subtracting 2156 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 14:
When dividing 440 by 308, we get 1 with a remainder of 132.
Use 1 as the next digit of our solution. 
Result so far: 292659.178571
Subtracting 308 from 440 leaves us with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 15:
When dividing 1320 by 308, we get 4 with a remainder of 88.
Use 4 as the next digit of our solution. 
Result so far: 292659.1785714
Subtracting 1232 from 1320 leaves us with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Moving on to step 16:
308 can be fit into 880 2 times, resulting in a remainder of 264.
Use 2 as the next digit of our solution. 
Result so far: 292659.17857142
Subtract 616 from 880 to get 264.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2640, and continue the process.

The final result is 292659.17857142 with a remainder of 2.64e-07.