Let's divide 31118659 by 21
We want to divide 31118659 by 21.

Let's proceed to step 1:
If we divide 3 by 21, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 21

Step 2:
When dividing 31 by 21, we get 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 21 from 31 leaves us with 10.
Grab the next digit (1) from the dividend, add it to 10, then carry on: 101 / 21

Advancing to step 3:
The number 21 fits into 101 4 times, leaving a remainder of 17.
The next digit of our result is 4. 
Result so far: 14.0
Subtract 84 from 101 to get 17.
Take the next digit (1) from the dividend and append it to 17, then repeat: 171 / 21

Step 4:
When dividing 171 by 21, we get 8 with a remainder of 3.
The next digit of our result is 8. 
Result so far: 148.0
If we take 168 away from 171, we end up with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 21

Going ahead to step 5:
38 divided by 21 is 1 with a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 1481.0
Subtracting 21 from 38 leaves us with 17.
Bring next digit (6) of the dividend behind the 17 and repeat the process: 176 / 21

Step 6:
21 goes into 176 8 times with a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 14818.0
If we subtract 168 from 176, we get 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 21

On to step 7:
The number 21 fits into 85 4 times, leaving a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 148184.0
If we subtract 84 from 85, we get 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 21

Moving on to step 8:
19 divided by 21 is 0 with a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 1481840.0
If we subtract 0 from 19, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 9:
21 goes into 190 9 times with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 1481840.9
Subtracting 189 from 190 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 10:
10 divided by 21 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 1481840.9
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 11:
If we divide 100 by 21, we get 4 and a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 1481840.904
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 12:
21 goes into 160 7 times with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 1481840.9047
Subtract 147 from 160 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 13:
21 goes into 130 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 1481840.90476
Subtract 126 from 130 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 14:
40 divided by 21 is 1 with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 1481840.904761
The remainder is 19 after subtracting 21 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 15:
21 goes into 190 9 times with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 1481840.9047619
If we subtract 189 from 190, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 16:
When dividing 10 by 21, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 1481840.9047619
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 1481840.9047619 with a remaining 1e-08.