We're dividing 91043378 by 671 
We want to divide 91043378 by 671.

Step 1:
9 divided by 671 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 671

Moving on to step 2:
The number 671 fits into 91 0 times, leaving a remainder of 91.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Bring next digit (0) of the dividend behind the 91 and repeat the process: 910 / 671

Advancing to step 3:
910 divided by 671 is 1 with a remainder of 239.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 671 away from 910, we end up with 239.
Grab the next digit (4) from the dividend, add it to 239, then carry on: 2394 / 671

Let's proceed to step 4:
2394 divided by 671 is 3 with a remainder of 381.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtracting 2013 from 2394 leaves us with 381.
Append the next digit (3) from the dividend to 381 and continue with: 3813 / 671

Let's proceed to step 5:
When dividing 3813 by 671, we get 5 with a remainder of 458.
Use 5 as the next digit of our solution. 
Result so far: 135.0
Deduct 3355 from 3813 and we're left with 458.
Fetch the next digit (3) from the dividend, attach it to 458 and continue: 4583 / 671

On to step 6:
If we divide 4583 by 671, we get 6 and a remainder of 557.
Use 6 as the next digit of our solution. 
Result so far: 1356.0
Subtract 4026 from 4583 to get 557.
Fetch the next digit (7) from the dividend, attach it to 557 and continue: 5577 / 671

Going ahead to step 7:
5577 divided by 671 is 8 with a remainder of 209.
Use 8 as the next digit of our solution. 
Result so far: 13568.0
If we take 5368 away from 5577, we end up with 209.
Take the next digit (8) from the dividend and append it to 209, then repeat: 2098 / 671

Going ahead to step 8:
When dividing 2098 by 671, we get 3 with a remainder of 85.
Record the quotient 3 as the next digit in the result. 
Result so far: 135683.0
The remainder is 85 after subtracting 2013 from 2098.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 9:
850 divided by 671 is 1 with a remainder of 179.
Write down 1 as next digit of the result. 
Result so far: 135683.1
Subtracting 671 from 850 leaves us with 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Step 10:
671 can be fit into 1790 2 times, resulting in a remainder of 448.
Record the quotient 2 as the next digit in the result. 
Result so far: 135683.12
The remainder is 448 after subtracting 1342 from 1790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Advancing to step 11:
If we divide 4480 by 671, we get 6 and a remainder of 454.
Record the quotient 6 as the next digit in the result. 
Result so far: 135683.126
If we take 4026 away from 4480, we end up with 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

Step 12:
671 can be fit into 4540 6 times, resulting in a remainder of 514.
The next digit of our result is 6. 
Result so far: 135683.1266
Deduct 4026 from 4540 and we're left with 514.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5140, and continue the process.

In conclusion, the division gives 135683.1266 with a balance of 0.00514.