We look at the division of 21458644 by 988 
We want to figure out the number of times 21458644 can be divided by 988.

Step 1:
988 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 988

Let's proceed to step 2:
21 divided by 988 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Append the next digit (4) from the dividend to 21 and continue with: 214 / 988

Moving on to step 3:
214 divided by 988 is 0 with a remainder of 214.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 214, we end up with 214.
Bring next digit (5) of the dividend behind the 214 and repeat the process: 2145 / 988

Going ahead to step 4:
988 goes into 2145 2 times with a remainder of 169.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 169 after subtracting 1976 from 2145.
Append the next digit (8) from the dividend to 169 and continue with: 1698 / 988

Advancing to step 5:
When dividing 1698 by 988, we get 1 with a remainder of 710.
The next digit of our result is 1. 
Result so far: 21.0
If we take 988 away from 1698, we end up with 710.
Append the next digit (6) from the dividend to 710 and continue with: 7106 / 988

Step 6:
When dividing 7106 by 988, we get 7 with a remainder of 190.
The number 7 becomes the next digit in our result. 
Result so far: 217.0
Subtracting 6916 from 7106 leaves us with 190.
Take the next digit (4) from the dividend and append it to 190, then repeat: 1904 / 988

Step 7:
When dividing 1904 by 988, we get 1 with a remainder of 916.
Write down 1 as next digit of the result. 
Result so far: 2171.0
If we take 988 away from 1904, we end up with 916.
Fetch the next digit (4) from the dividend, attach it to 916 and continue: 9164 / 988

On to step 8:
When dividing 9164 by 988, we get 9 with a remainder of 272.
Use 9 as the next digit of our solution. 
Result so far: 21719.0
If we take 8892 away from 9164, we end up with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Step 9:
The number 988 fits into 2720 2 times, leaving a remainder of 744.
The number 2 becomes the next digit in our result. 
Result so far: 21719.2
The remainder is 744 after subtracting 1976 from 2720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7440, and continue the process.

Advancing to step 10:
988 goes into 7440 7 times with a remainder of 524.
The number 7 becomes the next digit in our result. 
Result so far: 21719.27
If we take 6916 away from 7440, we end up with 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Step 11:
988 can be fit into 5240 5 times, resulting in a remainder of 300.
Use 5 as the next digit of our solution. 
Result so far: 21719.275
Subtracting 4940 from 5240 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 12:
The number 988 fits into 3000 3 times, leaving a remainder of 36.
Record the quotient 3 as the next digit in the result. 
Result so far: 21719.2753
Subtract 2964 from 3000 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 13:
When dividing 360 by 988, we get 0 with a remainder of 360.
The number 0 becomes the next digit in our result. 
Result so far: 21719.2753
If we subtract 0 from 360, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 14:
The number 988 fits into 3600 3 times, leaving a remainder of 636.
Put 3 as the next digit of the answer. 
Result so far: 21719.275303
Subtracting 2964 from 3600 leaves us with 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Let's proceed to step 15:
6360 divided by 988 is 6 with a remainder of 432.
The number 6 becomes the next digit in our result. 
Result so far: 21719.2753036
Deduct 5928 from 6360 and we're left with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

On to step 16:
If we divide 4320 by 988, we get 4 and a remainder of 368.
The number 4 becomes the next digit in our result. 
Result so far: 21719.27530364
If we subtract 3952 from 4320, we get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

The quotient of the division is 21719.27530364, and the remainder is 3.68e-07.