We divide 90531391 by 61
We want to divide 90531391 by 61.

Going ahead to step 1:
If we divide 9 by 61, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 61

Advancing to step 2:
61 can be fit into 90 1 times, resulting in a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 29 after subtracting 61 from 90.
Bring next digit (5) of the dividend behind the 29 and repeat the process: 295 / 61

Let's proceed to step 3:
61 can be fit into 295 4 times, resulting in a remainder of 51.
The next digit of our result is 4. 
Result so far: 14.0
If we subtract 244 from 295, we get 51.
Grab the next digit (3) from the dividend, add it to 51, then carry on: 513 / 61

Let's proceed to step 4:
61 goes into 513 8 times with a remainder of 25.
Use 8 as the next digit of our solution. 
Result so far: 148.0
The remainder is 25 after subtracting 488 from 513.
Append the next digit (1) from the dividend to 25 and continue with: 251 / 61

Moving on to step 5:
61 can be fit into 251 4 times, resulting in a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 1484.0
If we subtract 244 from 251, we get 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 61

Going ahead to step 6:
The number 61 fits into 73 1 times, leaving a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 14841.0
Deduct 61 from 73 and we're left with 12.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 61

Going ahead to step 7:
When dividing 129 by 61, we get 2 with a remainder of 7.
The next digit of our result is 2. 
Result so far: 148412.0
The remainder is 7 after subtracting 122 from 129.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 61

Step 8:
When dividing 71 by 61, we get 1 with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1484121.0
The remainder is 10 after subtracting 61 from 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
61 can be fit into 100 1 times, resulting in a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 1484121.1
If we take 61 away from 100, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 10:
When dividing 390 by 61, we get 6 with a remainder of 24.
Record the quotient 6 as the next digit in the result. 
Result so far: 1484121.16
The remainder is 24 after subtracting 366 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 11:
The number 61 fits into 240 3 times, leaving a remainder of 57.
Record the quotient 3 as the next digit in the result. 
Result so far: 1484121.163
Deduct 183 from 240 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 12:
The number 61 fits into 570 9 times, leaving a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 1484121.1639
If we subtract 549 from 570, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 13:
210 divided by 61 is 3 with a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 1484121.16393
If we subtract 183 from 210, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 14:
61 can be fit into 270 4 times, resulting in a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 1484121.163934
Subtracting 244 from 270 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 15:
The number 61 fits into 260 4 times, leaving a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 1484121.1639344
If we subtract 244 from 260, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 1484121.1639344 and a remainder of 1.6e-07.