We look at the division of 30139665 by 807 
We want to divide 30139665 by 807.

Advancing to step 1:
807 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 807

Step 2:
When dividing 30 by 807, we get 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Bring next digit (1) of the dividend behind the 30 and repeat the process: 301 / 807

Going ahead to step 3:
When dividing 301 by 807, we get 0 with a remainder of 301.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 301, we end up with 301.
Bring next digit (3) of the dividend behind the 301 and repeat the process: 3013 / 807

Let's proceed to step 4:
The number 807 fits into 3013 3 times, leaving a remainder of 592.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 2421 away from 3013, we end up with 592.
Append the next digit (9) from the dividend to 592 and continue with: 5929 / 807

Let's proceed to step 5:
807 goes into 5929 7 times with a remainder of 280.
The next digit of our result is 7. 
Result so far: 37.0
If we take 5649 away from 5929, we end up with 280.
Grab the next digit (6) from the dividend, add it to 280, then carry on: 2806 / 807

Step 6:
If we divide 2806 by 807, we get 3 and a remainder of 385.
Write down 3 as next digit of the result. 
Result so far: 373.0
Deduct 2421 from 2806 and we're left with 385.
Take the next digit (6) from the dividend and append it to 385, then repeat: 3856 / 807

Advancing to step 7:
807 can be fit into 3856 4 times, resulting in a remainder of 628.
Write down 4 as next digit of the result. 
Result so far: 3734.0
If we subtract 3228 from 3856, we get 628.
Append the next digit (5) from the dividend to 628 and continue with: 6285 / 807

Moving on to step 8:
807 goes into 6285 7 times with a remainder of 636.
Put 7 as the next digit of the answer. 
Result so far: 37347.0
The remainder is 636 after subtracting 5649 from 6285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Going ahead to step 9:
If we divide 6360 by 807, we get 7 and a remainder of 711.
The next digit of our result is 7. 
Result so far: 37347.7
If we take 5649 away from 6360, we end up with 711.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7110, and continue the process.

Let's proceed to step 10:
807 can be fit into 7110 8 times, resulting in a remainder of 654.
Record the quotient 8 as the next digit in the result. 
Result so far: 37347.78
Deduct 6456 from 7110 and we're left with 654.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

On to step 11:
807 goes into 6540 8 times with a remainder of 84.
Record the quotient 8 as the next digit in the result. 
Result so far: 37347.788
If we subtract 6456 from 6540, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

The final result is 37347.788 with a remainder of 0.0084.