Let's divide 674240 by 90
We're looking to find how many times 90 goes into 674240.

Step 1:
When dividing 6 by 90, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 90

Step 2:
When dividing 67 by 90, we get 0 with a remainder of 67.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 67, we get 67.
Take the next digit (4) from the dividend and append it to 67, then repeat: 674 / 90

Moving on to step 3:
90 can be fit into 674 7 times, resulting in a remainder of 44.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 630 from 674, we get 44.
Take the next digit (2) from the dividend and append it to 44, then repeat: 442 / 90

Going ahead to step 4:
If we divide 442 by 90, we get 4 and a remainder of 82.
Use 4 as the next digit of our solution. 
Result so far: 74.0
Subtracting 360 from 442 leaves us with 82.
Grab the next digit (4) from the dividend, add it to 82, then carry on: 824 / 90

Advancing to step 5:
824 divided by 90 is 9 with a remainder of 14.
Use 9 as the next digit of our solution. 
Result so far: 749.0
If we take 810 away from 824, we end up with 14.
Take the next digit (0) from the dividend and append it to 14, then repeat: 140 / 90

Let's proceed to step 6:
The number 90 fits into 140 1 times, leaving a remainder of 50.
Use 1 as the next digit of our solution. 
Result so far: 7491.0
If we take 90 away from 140, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 7:
If we divide 500 by 90, we get 5 and a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 7491.5
Subtract 450 from 500 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
The number 90 fits into 500 5 times, leaving a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 7491.55
Deduct 450 from 500 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Our division results in 7491.55 with a remaining 0.05.