We look at the division of 30090310 by 386 
Let's see how many times 386 fits into 30090310.

Going ahead to step 1:
386 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 386

On to step 2:
When dividing 30 by 386, we get 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Bring next digit (0) of the dividend behind the 30 and repeat the process: 300 / 386

Moving on to step 3:
If we divide 300 by 386, we get 0 and a remainder of 300.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 300 leaves us with 300.
Grab the next digit (9) from the dividend, add it to 300, then carry on: 3009 / 386

Advancing to step 4:
386 can be fit into 3009 7 times, resulting in a remainder of 307.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 2702 from 3009 to get 307.
Take the next digit (0) from the dividend and append it to 307, then repeat: 3070 / 386

On to step 5:
386 can be fit into 3070 7 times, resulting in a remainder of 368.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
Subtract 2702 from 3070 to get 368.
Take the next digit (3) from the dividend and append it to 368, then repeat: 3683 / 386

Step 6:
If we divide 3683 by 386, we get 9 and a remainder of 209.
Record the quotient 9 as the next digit in the result. 
Result so far: 779.0
If we subtract 3474 from 3683, we get 209.
Take the next digit (1) from the dividend and append it to 209, then repeat: 2091 / 386

Step 7:
386 goes into 2091 5 times with a remainder of 161.
Put 5 as the next digit of the answer. 
Result so far: 7795.0
Subtracting 1930 from 2091 leaves us with 161.
Grab the next digit (0) from the dividend, add it to 161, then carry on: 1610 / 386

Step 8:
The number 386 fits into 1610 4 times, leaving a remainder of 66.
Record the quotient 4 as the next digit in the result. 
Result so far: 77954.0
Subtract 1544 from 1610 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 9:
386 goes into 660 1 times with a remainder of 274.
The next digit of our result is 1. 
Result so far: 77954.1
If we subtract 386 from 660, we get 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

On to step 10:
When dividing 2740 by 386, we get 7 with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 77954.17
Deduct 2702 from 2740 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 11:
386 goes into 380 0 times with a remainder of 380.
Record the quotient 0 as the next digit in the result. 
Result so far: 77954.17
If we subtract 0 from 380, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 12:
3800 divided by 386 is 9 with a remainder of 326.
Record the quotient 9 as the next digit in the result. 
Result so far: 77954.1709
Deduct 3474 from 3800 and we're left with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Moving on to step 13:
If we divide 3260 by 386, we get 8 and a remainder of 172.
The next digit of our result is 8. 
Result so far: 77954.17098
Subtracting 3088 from 3260 leaves us with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Let's proceed to step 14:
1720 divided by 386 is 4 with a remainder of 176.
Write down 4 as next digit of the result. 
Result so far: 77954.170984
The remainder is 176 after subtracting 1544 from 1720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

On to step 15:
If we divide 1760 by 386, we get 4 and a remainder of 216.
Use 4 as the next digit of our solution. 
Result so far: 77954.1709844
Deduct 1544 from 1760 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

The final result is 77954.1709844 with a remainder of 2.16e-06.