We look at the division of 90031385 by 161 
Our goal is to divide 90031385 by 161.

Going ahead to step 1:
The number 161 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 161

Advancing to step 2:
161 goes into 90 0 times with a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 90 leaves us with 90.
Append the next digit (0) from the dividend to 90 and continue with: 900 / 161

Let's proceed to step 3:
The number 161 fits into 900 5 times, leaving a remainder of 95.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 805 from 900 leaves us with 95.
Take the next digit (3) from the dividend and append it to 95, then repeat: 953 / 161

Step 4:
When dividing 953 by 161, we get 5 with a remainder of 148.
The next digit of our result is 5. 
Result so far: 55.0
If we subtract 805 from 953, we get 148.
Append the next digit (1) from the dividend to 148 and continue with: 1481 / 161

Step 5:
161 can be fit into 1481 9 times, resulting in a remainder of 32.
Record the quotient 9 as the next digit in the result. 
Result so far: 559.0
The remainder is 32 after subtracting 1449 from 1481.
Bring next digit (3) of the dividend behind the 32 and repeat the process: 323 / 161

On to step 6:
If we divide 323 by 161, we get 2 and a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 5592.0
Subtracting 322 from 323 leaves us with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 161

Advancing to step 7:
When dividing 18 by 161, we get 0 with a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 55920.0
If we take 0 away from 18, we end up with 18.
Fetch the next digit (5) from the dividend, attach it to 18 and continue: 185 / 161

Step 8:
The number 161 fits into 185 1 times, leaving a remainder of 24.
The next digit of our result is 1. 
Result so far: 559201.0
Subtracting 161 from 185 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 9:
161 goes into 240 1 times with a remainder of 79.
Record the quotient 1 as the next digit in the result. 
Result so far: 559201.1
The remainder is 79 after subtracting 161 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Moving on to step 10:
790 divided by 161 is 4 with a remainder of 146.
The number 4 becomes the next digit in our result. 
Result so far: 559201.14
Deduct 644 from 790 and we're left with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Step 11:
1460 divided by 161 is 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 559201.149
Subtract 1449 from 1460 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 12:
When dividing 110 by 161, we get 0 with a remainder of 110.
Use 0 as the next digit of our solution. 
Result so far: 559201.149
The remainder is 110 after subtracting 0 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Advancing to step 13:
161 can be fit into 1100 6 times, resulting in a remainder of 134.
The number 6 becomes the next digit in our result. 
Result so far: 559201.14906
If we subtract 966 from 1100, we get 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Going ahead to step 14:
When dividing 1340 by 161, we get 8 with a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 559201.149068
The remainder is 52 after subtracting 1288 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 15:
161 can be fit into 520 3 times, resulting in a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 559201.1490683
If we subtract 483 from 520, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 16:
The number 161 fits into 370 2 times, leaving a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 559201.14906832
Deduct 322 from 370 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Our division results in 559201.14906832 with a remaining 4.8e-08.