669190 divided by 90 
We're looking to find how many times 90 goes into 669190.

Moving on to step 1:
90 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 90

Advancing to step 2:
When dividing 66 by 90, we get 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Take the next digit (9) from the dividend and append it to 66, then repeat: 669 / 90

Let's proceed to step 3:
90 can be fit into 669 7 times, resulting in a remainder of 39.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 630 from 669 to get 39.
Grab the next digit (1) from the dividend, add it to 39, then carry on: 391 / 90

Advancing to step 4:
When dividing 391 by 90, we get 4 with a remainder of 31.
Put 4 as the next digit of the answer. 
Result so far: 74.0
Subtracting 360 from 391 leaves us with 31.
Fetch the next digit (9) from the dividend, attach it to 31 and continue: 319 / 90

Let's proceed to step 5:
90 can be fit into 319 3 times, resulting in a remainder of 49.
Use 3 as the next digit of our solution. 
Result so far: 743.0
Subtracting 270 from 319 leaves us with 49.
Take the next digit (0) from the dividend and append it to 49, then repeat: 490 / 90

Let's proceed to step 6:
490 divided by 90 is 5 with a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 7435.0
Subtract 450 from 490 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 7:
If we divide 400 by 90, we get 4 and a remainder of 40.
The next digit of our result is 4. 
Result so far: 7435.4
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
400 divided by 90 is 4 with a remainder of 40.
The number 4 becomes the next digit in our result. 
Result so far: 7435.44
If we subtract 360 from 400, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

In conclusion, the division gives 7435.44 with a balance of 0.04.