We're dividing 978745 by 21 
We want to figure out the number of times 978745 can be divided by 21.

Advancing to step 1:
The number 21 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 21

Going ahead to step 2:
When dividing 97 by 21, we get 4 with a remainder of 13.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 84 from 97 to get 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 21

Advancing to step 3:
138 divided by 21 is 6 with a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 46.0
Subtracting 126 from 138 leaves us with 12.
Fetch the next digit (7) from the dividend, attach it to 12 and continue: 127 / 21

Let's proceed to step 4:
If we divide 127 by 21, we get 6 and a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 466.0
Deduct 126 from 127 and we're left with 1.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 21

Going ahead to step 5:
When dividing 14 by 21, we get 0 with a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 4660.0
Subtracting 0 from 14 leaves us with 14.
Append the next digit (5) from the dividend to 14 and continue with: 145 / 21

Moving on to step 6:
145 divided by 21 is 6 with a remainder of 19.
Write down 6 as next digit of the result. 
Result so far: 46606.0
Deduct 126 from 145 and we're left with 19.
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 7:
The number 21 fits into 190 9 times, leaving a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 46606.9
Deduct 189 from 190 and we're left 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.

Moving on to step 8:
21 goes into 10 0 times with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 46606.9
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 9:
21 goes into 100 4 times with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 46606.904
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.

Advancing to step 10:
The number 21 fits into 160 7 times, leaving a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 46606.9047
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.

Moving on to step 11:
130 divided by 21 is 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 46606.90476
If we subtract 126 from 130, we 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.

Let's proceed to step 12:
40 divided by 21 is 1 with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 46606.904761
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 13:
21 goes into 190 9 times with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 46606.9047619
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.

Let's proceed to step 14:
When dividing 10 by 21, we get 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 46606.9047619
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.

In conclusion, the division gives 46606.9047619 with a balance of 1e-08.