We look at the division of 74977159 by 20 
Let's see how many times 20 fits into 74977159.

On to step 1:
When dividing 7 by 20, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 20

Let's proceed to step 2:
20 goes into 74 3 times with a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 60 from 74, we get 14.
Append the next digit (9) from the dividend to 14 and continue with: 149 / 20

Let's proceed to step 3:
149 divided by 20 is 7 with a remainder of 9.
The next digit of our result is 7. 
Result so far: 37.0
Deduct 140 from 149 and we're left with 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 20

Moving on to step 4:
97 divided by 20 is 4 with a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 374.0
If we take 80 away from 97, we end up with 17.
Fetch the next digit (7) from the dividend, attach it to 17 and continue: 177 / 20

Advancing to step 5:
If we divide 177 by 20, we get 8 and a remainder of 17.
Write down 8 as next digit of the result. 
Result so far: 3748.0
If we take 160 away from 177, we end up with 17.
Grab the next digit (1) from the dividend, add it to 17, then carry on: 171 / 20

On to step 6:
171 divided by 20 is 8 with a remainder of 11.
Record the quotient 8 as the next digit in the result. 
Result so far: 37488.0
The remainder is 11 after subtracting 160 from 171.
Include the next digit (5) from the dividend after 11, then repeat: 115 / 20

Let's proceed to step 7:
115 divided by 20 is 5 with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 374885.0
If we subtract 100 from 115, we get 15.
Bring next digit (9) of the dividend behind the 15 and repeat the process: 159 / 20

Moving on to step 8:
When dividing 159 by 20, we get 7 with a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 3748857.0
Deduct 140 from 159 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.

On to step 9:
190 divided by 20 is 9 with a remainder of 10.
Put 9 as the next digit of the answer. 
Result so far: 3748857.9
Subtracting 180 from 190 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.

Going ahead to step 10:
20 goes into 100 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 3748857.95
Subtract 100 from 100 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.

On to step 11:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 3748857.95
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 12:
20 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 3748857.95
If we take 0 away from 0, we end up with 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 final result is 3748857.95 with a remainder of 0.0.