We look at the division of 91009130 by 431 
Our goal is to divide 91009130 by 431.

Going ahead to step 1:
431 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 431

Going ahead to step 2:
431 can be fit into 91 0 times, resulting in a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 91, we end up with 91.
Include the next digit (0) from the dividend after 91, then repeat: 910 / 431

Going ahead to step 3:
910 divided by 431 is 2 with a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 862 from 910, we get 48.
Fetch the next digit (0) from the dividend, attach it to 48 and continue: 480 / 431

Moving on to step 4:
When dividing 480 by 431, we get 1 with a remainder of 49.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
The remainder is 49 after subtracting 431 from 480.
Bring next digit (9) of the dividend behind the 49 and repeat the process: 499 / 431

Step 5:
If we divide 499 by 431, we get 1 and a remainder of 68.
Write down 1 as next digit of the result. 
Result so far: 211.0
The remainder is 68 after subtracting 431 from 499.
Append the next digit (1) from the dividend to 68 and continue with: 681 / 431

Moving on to step 6:
The number 431 fits into 681 1 times, leaving a remainder of 250.
Write down 1 as next digit of the result. 
Result so far: 2111.0
Deduct 431 from 681 and we're left with 250.
Append the next digit (3) from the dividend to 250 and continue with: 2503 / 431

Moving on to step 7:
If we divide 2503 by 431, we get 5 and a remainder of 348.
Write down 5 as next digit of the result. 
Result so far: 21115.0
The remainder is 348 after subtracting 2155 from 2503.
Fetch the next digit (0) from the dividend, attach it to 348 and continue: 3480 / 431

Moving on to step 8:
If we divide 3480 by 431, we get 8 and a remainder of 32.
Record the quotient 8 as the next digit in the result. 
Result so far: 211158.0
If we take 3448 away from 3480, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 9:
320 divided by 431 is 0 with a remainder of 320.
Record the quotient 0 as the next digit in the result. 
Result so far: 211158.0
Deduct 0 from 320 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 10:
When dividing 3200 by 431, we get 7 with a remainder of 183.
Put 7 as the next digit of the answer. 
Result so far: 211158.07
The remainder is 183 after subtracting 3017 from 3200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Going ahead to step 11:
When dividing 1830 by 431, we get 4 with a remainder of 106.
Use 4 as the next digit of our solution. 
Result so far: 211158.074
Subtract 1724 from 1830 to get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

On to step 12:
The number 431 fits into 1060 2 times, leaving a remainder of 198.
The number 2 becomes the next digit in our result. 
Result so far: 211158.0742
Subtract 862 from 1060 to get 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Step 13:
The number 431 fits into 1980 4 times, leaving a remainder of 256.
The next digit of our result is 4. 
Result so far: 211158.07424
Subtract 1724 from 1980 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Advancing to step 14:
431 goes into 2560 5 times with a remainder of 405.
Write down 5 as next digit of the result. 
Result so far: 211158.074245
The remainder is 405 after subtracting 2155 from 2560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Advancing to step 15:
431 goes into 4050 9 times with a remainder of 171.
The number 9 becomes the next digit in our result. 
Result so far: 211158.0742459
The remainder is 171 after subtracting 3879 from 4050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Moving on to step 16:
If we divide 1710 by 431, we get 3 and a remainder of 417.
Use 3 as the next digit of our solution. 
Result so far: 211158.07424593
Deduct 1293 from 1710 and we're left with 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

The quotient of the division is 211158.07424593, and the remainder is 4.17e-07.