We're dividing 64202720 by 959 
The aim is to understand the frequency of 959 in 64202720.

On to step 1:
The number 959 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 959

Advancing to step 2:
If we divide 64 by 959, we get 0 and a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Append the next digit (2) from the dividend to 64 and continue with: 642 / 959

Advancing to step 3:
959 goes into 642 0 times with a remainder of 642.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 642, we get 642.
Append the next digit (0) from the dividend to 642 and continue with: 6420 / 959

On to step 4:
959 goes into 6420 6 times with a remainder of 666.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 5754 from 6420 and we're left with 666.
Fetch the next digit (2) from the dividend, attach it to 666 and continue: 6662 / 959

On to step 5:
If we divide 6662 by 959, we get 6 and a remainder of 908.
Write down 6 as next digit of the result. 
Result so far: 66.0
Deduct 5754 from 6662 and we're left with 908.
Grab the next digit (7) from the dividend, add it to 908, then carry on: 9087 / 959

Let's proceed to step 6:
When dividing 9087 by 959, we get 9 with a remainder of 456.
The next digit of our result is 9. 
Result so far: 669.0
If we subtract 8631 from 9087, we get 456.
Grab the next digit (2) from the dividend, add it to 456, then carry on: 4562 / 959

On to step 7:
959 goes into 4562 4 times with a remainder of 726.
Record the quotient 4 as the next digit in the result. 
Result so far: 6694.0
Subtracting 3836 from 4562 leaves us with 726.
Bring next digit (0) of the dividend behind the 726 and repeat the process: 7260 / 959

Moving on to step 8:
When dividing 7260 by 959, we get 7 with a remainder of 547.
Record the quotient 7 as the next digit in the result. 
Result so far: 66947.0
The remainder is 547 after subtracting 6713 from 7260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5470, and continue the process.

On to step 9:
959 goes into 5470 5 times with a remainder of 675.
The number 5 becomes the next digit in our result. 
Result so far: 66947.5
Subtract 4795 from 5470 to get 675.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6750, and continue the process.

Moving on to step 10:
If we divide 6750 by 959, we get 7 and a remainder of 37.
The next digit of our result is 7. 
Result so far: 66947.57
The remainder is 37 after subtracting 6713 from 6750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 11:
959 can be fit into 370 0 times, resulting in a remainder of 370.
The number 0 becomes the next digit in our result. 
Result so far: 66947.57
If we take 0 away from 370, we end up with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Going ahead to step 12:
959 goes into 3700 3 times with a remainder of 823.
Use 3 as the next digit of our solution. 
Result so far: 66947.5703
Subtracting 2877 from 3700 leaves us with 823.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8230, and continue the process.

Moving on to step 13:
If we divide 8230 by 959, we get 8 and a remainder of 558.
Use 8 as the next digit of our solution. 
Result so far: 66947.57038
If we take 7672 away from 8230, we end up with 558.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

Advancing to step 14:
If we divide 5580 by 959, we get 5 and a remainder of 785.
Record the quotient 5 as the next digit in the result. 
Result so far: 66947.570385
If we subtract 4795 from 5580, we get 785.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7850, and continue the process.

Advancing to step 15:
7850 divided by 959 is 8 with a remainder of 178.
The number 8 becomes the next digit in our result. 
Result so far: 66947.5703858
Subtract 7672 from 7850 to get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Moving on to step 16:
The number 959 fits into 1780 1 times, leaving a remainder of 821.
Put 1 as the next digit of the answer. 
Result so far: 66947.57038581
Subtracting 959 from 1780 leaves us with 821.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8210, and continue the process.

After the division, we end up with 66947.57038581 and a remainder of 8.21e-07.