We look at the division of 525090 by 91 
We're looking to find how many times 91 goes into 525090.

Advancing to step 1:
When dividing 5 by 91, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 91

On to step 2:
91 goes into 52 0 times with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 52 after subtracting 0 from 52.
Grab the next digit (5) from the dividend, add it to 52, then carry on: 525 / 91

On to step 3:
91 goes into 525 5 times with a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 455 from 525 leaves us with 70.
Append the next digit (0) from the dividend to 70 and continue with: 700 / 91

Advancing to step 4:
91 goes into 700 7 times with a remainder of 63.
Put 7 as the next digit of the answer. 
Result so far: 57.0
If we subtract 637 from 700, we get 63.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 91

Advancing to step 5:
When dividing 639 by 91, we get 7 with a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 577.0
If we subtract 637 from 639, we get 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 91

Step 6:
The number 91 fits into 20 0 times, leaving a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 5770.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 7:
200 divided by 91 is 2 with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 5770.2
If we take 182 away from 200, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 8:
180 divided by 91 is 1 with a remainder of 89.
The number 1 becomes the next digit in our result. 
Result so far: 5770.21
Deduct 91 from 180 and we're left with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Advancing to step 9:
When dividing 890 by 91, we get 9 with a remainder of 71.
Put 9 as the next digit of the answer. 
Result so far: 5770.219
If we subtract 819 from 890, we get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 10:
If we divide 710 by 91, we get 7 and a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 5770.2197
Subtract 637 from 710 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 11:
91 can be fit into 730 8 times, resulting in a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 5770.21978
Deduct 728 from 730 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 12:
When dividing 20 by 91, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 5770.21978
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
When dividing 200 by 91, we get 2 with a remainder of 18.
The next digit of our result is 2. 
Result so far: 5770.2197802
If we subtract 182 from 200, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 14:
The number 91 fits into 180 1 times, leaving a remainder of 89.
Record the quotient 1 as the next digit in the result. 
Result so far: 5770.21978021
If we take 91 away from 180, we end up with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

After the division, we end up with 5770.21978021 and a remainder of 8.9e-08.