We're dividing 90211707 by 253 
We want to figure out the number of times 90211707 can be divided by 253.

On to step 1:
The number 253 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 253

Moving on to step 2:
253 can be fit into 90 0 times, resulting in a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Take the next digit (2) from the dividend and append it to 90, then repeat: 902 / 253

Advancing to step 3:
When dividing 902 by 253, we get 3 with a remainder of 143.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 143 after subtracting 759 from 902.
Bring next digit (1) of the dividend behind the 143 and repeat the process: 1431 / 253

Going ahead to step 4:
If we divide 1431 by 253, we get 5 and a remainder of 166.
The next digit of our result is 5. 
Result so far: 35.0
Deduct 1265 from 1431 and we're left with 166.
Bring next digit (1) of the dividend behind the 166 and repeat the process: 1661 / 253

Let's proceed to step 5:
If we divide 1661 by 253, we get 6 and a remainder of 143.
Use 6 as the next digit of our solution. 
Result so far: 356.0
If we take 1518 away from 1661, we end up with 143.
Grab the next digit (7) from the dividend, add it to 143, then carry on: 1437 / 253

On to step 6:
1437 divided by 253 is 5 with a remainder of 172.
Put 5 as the next digit of the answer. 
Result so far: 3565.0
Subtract 1265 from 1437 to get 172.
Append the next digit (0) from the dividend to 172 and continue with: 1720 / 253

Moving on to step 7:
253 can be fit into 1720 6 times, resulting in a remainder of 202.
Record the quotient 6 as the next digit in the result. 
Result so far: 35656.0
Subtract 1518 from 1720 to get 202.
Append the next digit (7) from the dividend to 202 and continue with: 2027 / 253

Moving on to step 8:
253 can be fit into 2027 8 times, resulting in a remainder of 3.
The next digit of our result is 8. 
Result so far: 356568.0
If we take 2024 away from 2027, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 9:
If we divide 30 by 253, we get 0 and a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 356568.0
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
When dividing 300 by 253, we get 1 with a remainder of 47.
Put 1 as the next digit of the answer. 
Result so far: 356568.01
Subtract 253 from 300 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 11:
253 can be fit into 470 1 times, resulting in a remainder of 217.
Record the quotient 1 as the next digit in the result. 
Result so far: 356568.011
If we take 253 away from 470, we end up with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

The final result is 356568.011 with a remainder of 0.0217.