We look at the division of 25870481 by 161 
We want to divide 25870481 by 161.

On to step 1:
161 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 161

Moving on to step 2:
If we divide 25 by 161, we get 0 and a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Include the next digit (8) from the dividend after 25, then repeat: 258 / 161

Going ahead to step 3:
If we divide 258 by 161, we get 1 and a remainder of 97.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 161 from 258 and we're left with 97.
Grab the next digit (7) from the dividend, add it to 97, then carry on: 977 / 161

Going ahead to step 4:
977 divided by 161 is 6 with a remainder of 11.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtract 966 from 977 to get 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 161

Step 5:
110 divided by 161 is 0 with a remainder of 110.
The next digit of our result is 0. 
Result so far: 160.0
Subtracting 0 from 110 leaves us with 110.
Append the next digit (4) from the dividend to 110 and continue with: 1104 / 161

Moving on to step 6:
When dividing 1104 by 161, we get 6 with a remainder of 138.
Write down 6 as next digit of the result. 
Result so far: 1606.0
Subtracting 966 from 1104 leaves us with 138.
Fetch the next digit (8) from the dividend, attach it to 138 and continue: 1388 / 161

Let's proceed to step 7:
The number 161 fits into 1388 8 times, leaving a remainder of 100.
Use 8 as the next digit of our solution. 
Result so far: 16068.0
If we take 1288 away from 1388, we end up with 100.
Take the next digit (1) from the dividend and append it to 100, then repeat: 1001 / 161

Let's proceed to step 8:
The number 161 fits into 1001 6 times, leaving a remainder of 35.
The number 6 becomes the next digit in our result. 
Result so far: 160686.0
Subtracting 966 from 1001 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 9:
The number 161 fits into 350 2 times, leaving a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 160686.2
Subtracting 322 from 350 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 10:
If we divide 280 by 161, we get 1 and a remainder of 119.
Put 1 as the next digit of the answer. 
Result so far: 160686.21
The remainder is 119 after subtracting 161 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Advancing to step 11:
When dividing 1190 by 161, we get 7 with a remainder of 63.
Put 7 as the next digit of the answer. 
Result so far: 160686.217
If we take 1127 away from 1190, we end up 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.

Let's proceed to step 12:
If we divide 630 by 161, we get 3 and a remainder of 147.
The number 3 becomes the next digit in our result. 
Result so far: 160686.2173
The remainder is 147 after subtracting 483 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

Let's proceed to step 13:
161 goes into 1470 9 times with a remainder of 21.
Record the quotient 9 as the next digit in the result. 
Result so far: 160686.21739
Subtract 1449 from 1470 to 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.

Going ahead to step 14:
161 goes into 210 1 times with a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 160686.217391
The remainder is 49 after subtracting 161 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 15:
When dividing 490 by 161, we get 3 with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 160686.2173913
Subtracting 483 from 490 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 16:
If we divide 70 by 161, we get 0 and a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 160686.2173913
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The quotient of the division is 160686.2173913, and the remainder is 7e-08.