We look at the division of 126594 by 90 
We're looking to find how many times 90 goes into 126594.

Moving on to step 1:
1 divided by 90 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 90

On to step 2:
90 can be fit into 12 0 times, resulting in a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 90

Moving on to step 3:
126 divided by 90 is 1 with a remainder of 36.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 90 from 126 to get 36.
Grab the next digit (5) from the dividend, add it to 36, then carry on: 365 / 90

On to step 4:
90 can be fit into 365 4 times, resulting in a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Subtract 360 from 365 to get 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 90

Going ahead to step 5:
When dividing 59 by 90, we get 0 with a remainder of 59.
Put 0 as the next digit of the answer. 
Result so far: 140.0
The remainder is 59 after subtracting 0 from 59.
Grab the next digit (4) from the dividend, add it to 59, then carry on: 594 / 90

Moving on to step 6:
If we divide 594 by 90, we get 6 and a remainder of 54.
The number 6 becomes the next digit in our result. 
Result so far: 1406.0
Subtracting 540 from 594 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 7:
When dividing 540 by 90, we get 6 with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 1406.6
Subtracting 540 from 540 leaves us with 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:
The number 90 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1406.6
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
90 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1406.6
Subtracting 0 from 0 leaves us with 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 result is 1406.6 with a remainder of 0.0.