We divide 21134598 by 123
Our goal is to divide 21134598 by 123.

Moving on to step 1:
123 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 123

Advancing to step 2:
The number 123 fits into 21 0 times, leaving a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Include the next digit (1) from the dividend after 21, then repeat: 211 / 123

On to step 3:
The number 123 fits into 211 1 times, leaving a remainder of 88.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 123 from 211 and we're left with 88.
Fetch the next digit (3) from the dividend, attach it to 88 and continue: 883 / 123

On to step 4:
123 goes into 883 7 times with a remainder of 22.
Write down 7 as next digit of the result. 
Result so far: 17.0
Deduct 861 from 883 and we're left with 22.
Bring next digit (4) of the dividend behind the 22 and repeat the process: 224 / 123

Step 5:
If we divide 224 by 123, we get 1 and a remainder of 101.
The next digit of our result is 1. 
Result so far: 171.0
Deduct 123 from 224 and we're left with 101.
Grab the next digit (5) from the dividend, add it to 101, then carry on: 1015 / 123

Let's proceed to step 6:
If we divide 1015 by 123, we get 8 and a remainder of 31.
Put 8 as the next digit of the answer. 
Result so far: 1718.0
Subtracting 984 from 1015 leaves us with 31.
Grab the next digit (9) from the dividend, add it to 31, then carry on: 319 / 123

Step 7:
123 can be fit into 319 2 times, resulting in a remainder of 73.
Put 2 as the next digit of the answer. 
Result so far: 17182.0
Deduct 246 from 319 and we're left with 73.
Bring next digit (8) of the dividend behind the 73 and repeat the process: 738 / 123

On to step 8:
123 can be fit into 738 6 times, resulting in a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 171826.0
Subtract 738 from 738 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
When dividing 0 by 123, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 171826.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
123 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 171826.0
The remainder is 0 after subtracting 0 from 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 quotient of the division is 171826.0, and the remainder is 0.0.