We're dividing 661473 by 90 
We want to divide 661473 by 90.

Step 1:
90 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 90

Moving on to step 2:
The number 90 fits into 66 0 times, leaving a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Grab the next digit (1) from the dividend, add it to 66, then carry on: 661 / 90

Step 3:
90 goes into 661 7 times with a remainder of 31.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Deduct 630 from 661 and we're left with 31.
Include the next digit (4) from the dividend after 31, then repeat: 314 / 90

Going ahead to step 4:
314 divided by 90 is 3 with a remainder of 44.
The next digit of our result is 3. 
Result so far: 73.0
If we take 270 away from 314, we end up with 44.
Append the next digit (7) from the dividend to 44 and continue with: 447 / 90

Let's proceed to step 5:
When dividing 447 by 90, we get 4 with a remainder of 87.
Put 4 as the next digit of the answer. 
Result so far: 734.0
The remainder is 87 after subtracting 360 from 447.
Grab the next digit (3) from the dividend, add it to 87, then carry on: 873 / 90

Going ahead to step 6:
90 can be fit into 873 9 times, resulting in a remainder of 63.
Put 9 as the next digit of the answer. 
Result so far: 7349.0
Deduct 810 from 873 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 7:
90 goes into 630 7 times with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 7349.7
If we subtract 630 from 630, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
If we divide 0 by 90, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 7349.7
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
90 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 7349.7
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 7349.7, with a leftover of 0.0.