We look at the division of 671212 by 90 
We're looking to find how many times 90 goes into 671212.

Step 1:
When dividing 6 by 90, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 90

Going ahead to step 2:
When dividing 67 by 90, we get 0 with a remainder of 67.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 67, we end up with 67.
Take the next digit (1) from the dividend and append it to 67, then repeat: 671 / 90

On to step 3:
90 goes into 671 7 times with a remainder of 41.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 630 from 671, we get 41.
Bring next digit (2) of the dividend behind the 41 and repeat the process: 412 / 90

Step 4:
90 can be fit into 412 4 times, resulting in a remainder of 52.
Write down 4 as next digit of the result. 
Result so far: 74.0
Subtracting 360 from 412 leaves us with 52.
Append the next digit (1) from the dividend to 52 and continue with: 521 / 90

Step 5:
If we divide 521 by 90, we get 5 and a remainder of 71.
Write down 5 as next digit of the result. 
Result so far: 745.0
If we subtract 450 from 521, we get 71.
Include the next digit (2) from the dividend after 71, then repeat: 712 / 90

On to step 6:
90 can be fit into 712 7 times, resulting in a remainder of 82.
The number 7 becomes the next digit in our result. 
Result so far: 7457.0
Deduct 630 from 712 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 7:
If we divide 820 by 90, we get 9 and a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 7457.9
The remainder is 10 after subtracting 810 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
The number 90 fits into 100 1 times, leaving a remainder of 10.
The next digit of our result is 1. 
Result so far: 7457.91
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
If we divide 100 by 90, we get 1 and a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 7457.911
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 7457.911 with a remaining 0.001.